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• Letter from Charles Apt to LP. [Filed under LP Correspondence: Box #12, Folder #18]

  Massachusetts Institute of Technology

  Cambridge, Massachusetts

  [all handwritten] Prof. Linus Pauling

  Chemistry Dept

  California Institute of Technology,

  Pasadena, Calif.

  Dear Sir:

  Some months ago I wrote to you asking about the possibility of doing post doctorate research with you in the academic year 1952-1953. Sometime after that I met you here at M.I.T. and discussed with you the possibility of working on the structures of the [?] nucleic acids. This problem was suggested to me by Prof Shoemaker.

  You suggested a couple of ways in which it might be …[?]…possible for me to study with you at Cal Tech. I started to act on your suggestions, when a teaching position became available at Amherst College and I was offered one position. After a considerable amount of deliberation I accepted this position.

  This decision was a very difficult one to make. For I have been looking forward to studying with you for some time and I think that the study of the nucleic acids should prove to be very fascinating. However I felt that this position at Amherst would give me some good experience in teaching and in developing a line of research.

  While you were here you suggested that I write to Prof. A. R. Todd [?] to ask for some further information on the structure of the nucleic acids. This I did, and I have received some reprints of articles published by him in the Journal of the Chemical Society of London, one of which is particularly pertinent. You no doubt have seen it, but I shall send it on to you when Prof. Shoemaker has finished with it.

  I want to thank you very much for your encouraging interest in this problem. And for the suggestions you made regarding post doctoral fellowships. I hope I may be able to meet you again in the near future.

  Very truly yours,

  Charles M. Apt

  Rm 6-131

  M.I.T.

• Pauling Scrapbook: Scalacs (Regional Bulletin of the Southern California Section, American Chemical Society) blurb entitled "Caltech" RE: discusses the two Brazilian educational institution honors given to LP for his contributions to modern chemistry. [Filed under LP Biographical: Box 6.006, Folder 6.20]
• Reprint, “Interatomic Distances and Bond Character in the Oxygen Acids and Related Substances,” Journal of Physical Chemistry. 56 (March 1952): 361-365. [Filed under LP Reprints: (Publications of Linus Pauling, 1952), Box 1952p, folder 1952p.4]
• Reprint, “The Lotmar-Picken X-Ray Diagram of Dried Muscle,” Nature.Nature 169 (March 1952): 494-495. [Filed under LP Reprints: (Publications of Linus Pauling, 1952), Box 1952p, Folder 1952p.9]

• AHP writes cheque: to: Harry Osaki amount: $8.00 [Filed under LP Biographical: Box #4.021, Folder #3]
• AHP writes cheque: to: Walter Fritts amount: $40.00 [Filed under LP Biographical: Box #4.021, Folder #3]
• Letter from Charles M. Grossman, M.D. to LP RE: Requests information about Guggenheim Fellowships. His colleague, James D. Hauschildt, is helping them with their research, but is unable to obtain further support. Was wondering if LP thought that Mr. Hauschildt would be eligible for a fellowship. Their current work is concerned with incorporation of radioactive glycine into protein using human liver slices and human colon mucosa. [Letter of response from LP to Mr. Grossman March 5, 1952] [Filed under G: Correspondence 1952, Box #140, Folder #16]
• Letter from Dr. H. Kacser to LP RE: writes in connection with the letter and MS that he sent to LP January 25, 1952. Explains his action in sending the British Empire's Cancer Campaign an application giving LP's department as a possible place that he would hold a possible fellowship. He just didn't want to miss a possible opportunity. [Letter from LP February 21, 1952] [Filed under K: Correspondence 1952, Box #200, Folder #17]
• Note from Prof. F. E. Malherbe to LP RE: thanks LP for the letter of December 19, 1951. Comments on some aspects of LP's catalog. Asks LP to give him examples of Caltech's methods of study, and also requests copies of the mimeographed notes used by Prof. Bates and Badge in conjunction with certain chemistry courses. [related memo from LP to Prof. Bates March 11, 1952, letter of response from LP to Prof. Malherbe April 4, 1952] [Filed under M: Correspondence 1952, Box #256, Folder #3]

• Letter from Donald P. Cottrell of Ohio State University, to LP RE: thanks LP for his letter endorsing Howard J. Lucas for an honorary degree at the Ohio State University. [Letter from LP to Dean Cottrell February 21, 1952] [Filed under L: Correspondence 1952, Box #230, Folder #18]
• Letter from Eileen Martin, Secretary to W.H. Freeman, to LP . RE: Freeman would like to hear LP's comments on the letter she has forwarded. [Filed under LP Books, 1953b.6]
• Letter from Juan Llado Martorell to LP RE: [written in Spanish] [Letter of response from LP to Sr. Juan Llado Martorell March 18, 1952] [Filed under M: Correspondence 1952, Box #256, Folder #3]
• Letter from L. Reed Brantley of Occidental College RE: says that after the meeting of the American Chemical Society Standing Committee on Chemical Education in the fall of 1951, the Sub-Committee was "charged with the responsibility of reporting to the Standing Committee suggestions for a program to further the objectives for chemical education." Mr. Brantley invites LP to serve as a member of this Sub-Committee. [Letter of response from LP to Mr. Brantley March 5, 1952] [Filed under B: Correspondence 1952, Box #37, Folder #19]
• Letter from LP to Dr. Max Mason RE: thanks him for talking the proposed California Society of Fellows over with Bentrell. Requests a statement for Bantrell about the proposed plan, as outlined in LP's prospectus. Sends along a copy of the report on the Harvard Society of Fellows for interest value. [Filed under LP Correspondence: Box #23, Folder #5].
• Letter from LP to Mr. Ben May. [Letter from Mr. Ben May February 25, 1952, letter from Mr. May to LP March 3, 1952] [Filed under LP Correspondence: Box #244, Folder #5 (May, Ben)]

  3 March 1952

  Mr. Ben May

  P.O. Box 1186

  Mobile 7, Alabama

  Dear Mr. May:

  I thank you for your last letter, and the clipping from the Lancet, as well as for other letters and clippings that you have sent to me during recent months.

  I may say that our work on sickle cell anemia is continuing to go along well. A number of hematological abnormalities related to hemoglobin have been uncovered. Also, plans are moving along well for the clinical test of a therapeutic treatment that we have formulated on the basis of our knowledge of the abnormality of the hemoglobin. This clinical work is being carried out by Dr. George Burch, Professor of Medicine at Tulane University School of Medicine. He has gone through the preliminary period of study, development of assay methods, etc., and reported to me that the one patient on whom the therapy had been tried out got better, although of course one patient is not enough to prove anything.

  We are very pleased with a new development here. A resident of southern California gave the California Institute of Technology $750,000 last year, toward the expense of building a new laboratory of chemical biology. In January he died, and in his a will he left an additional $300,000 for the construction of the laboratory. Building costs are very high now, but I believe that the Trustees are planning to go ahead with the construction of the building. Professor Beadle and I are hoping that we can raise some additional money to equip the laboratory space that will be provided. Both Professor Beadle and I, together with the people who are working most closely with us, especially on problems of chemical biology that relate to medicine, will move into the new building. It will, according to our plans, be connected directly to the present chemistry laboratory and to the present biology laboratory.

  With best regards, I am

  Sincerely yours,

  Linus Pauling:W

• Letter from Mr. Ben May to LP RE: Again, sends LP clippings of articles relating to sickle cell anemia. [Letter from LP to Mr. Ben May March 3, 1952, letter from Mr. May to LP March 5, 1952] [Filed under LP Correspondence: Box #244, Folder #5 (May, Ben)].
• Letter from W.H. Freeman, W.H. Freeman and Co., to Dr. Lloyd E. Malm and Dr. Harper W. Frantz, RE: Freeman says that sales in the past year of the lab manual for LP's General Chemistry have been so small that they cannot afford to reprint the book before the next revision of General Chemistry is due. Freeman intends to let the book go temporarily out of print. [Filed under LP Books, 1953b.6]
• Letter from W.N. Lacey to LP RE: Outline of what was discussed at the meeting regarding graduate research assistantships. Highlights from a meeting outlining the new policy of having two different classes of graduate assistants rather than one. There will now be Graduate Research Assistants and Graduate Teaching Assistants.
• Memo from LP to Dr. Rack. [LP Science: Box 6.002, Folder 2.4]

  I suggest that you consider ways in which radial distribution functions for helical structures could be calculated with less effort than has been necessary in the past.

  Possibly an analytical method could be used. For example, it might be interesting to consider the radial distribution function for an 18-residue 5-turn helix, as calculated by smearing each set of atoms uniformly along a helix, as was done in the calculation of structure factors by Professor Schomaker. The radial distribution function could then be expressed in terms of an integral. I am not sure that the integral could be evaluated.

  A somewhat better approximation could be made by assuming that the atoms of each kind can be represented by a sinusoidal distribution of scattering matter along a helical xxx curve - that is, a constant plus a single cosine function, such as to make the density increase from 0 to a maximum and then back to 0 again, this change occurring 18 times in 5 turns along the helix. It might be possible to evaluate the integral for this case.

  The limiting case would, of course, involve an infinite number of sinusoidal terms, all with the same coefficients, to correspond to point atoms.

  Although it is possible that a relatively simple expression for the radial distribution function can be developed in this way, I am not optimistic about it. I think that it is likely, however, that a simple machine could be built, for use in calculating the radial distribution functions for helical structures. You might consider the design of such a machine. I suggest that it be kept very simple in design, and probably that it not be planned for construction by the instrument makers.

  I suggest that the machine might consist of a framework supporting a rod in vertical orientation, with a side arm, which would define a point at fixed altitude, radius, and azimuth. A device should be designed that would permit the rotation of this assembly through exactly 100°, and at the same time its elevation by the distance corresponding to 1.50 A. By the repeated operation of this device, the indicated point would be carried through the successive positions corresponding to the set of atoms defined by the parameters.

  A second point, at the base of the apparatus, would be defined by another set of parameters; this point would represent another atom in the structure.

  For each setting of the first point a measurement of the interatomic distance corresponding to the relative positions of the two points would be made by means of a scale. I suggest that the scale should be attached to the assembly representing the first point, and that it should move passed a fiducial mark at the second point, permitting the operator to read the distance. Probably the scale could best be an inch scale marked off in tenths of an inch, with perhaps smaller subdivisions.

  I think that a scale of 2 inches to 1 Angstrom would be best. This would permit the radial distribution function out to 20 Angstroms to be determined, with an instrument standing 40 inches high (plus the additional expansion of the moving assembly, which might double the height).

  I think that a device of this sort could be constructed very easily that would be reliable to within about 0.1 inch. This would correspond to the determination of interatomic distances to within 0.05 A, which is good enough for our purposes. In fact, it might well be worth while to build the apparatus as described, but to plan to use it on the scale 1 inch equal 1 Angstrom. This would permit the determination of the radial distribution function out to 40 Angstrom (over 7 turns of the α helix), with an accuracy of 0.1 A.

  The interesting structures will in general correspond to cylindrical radii not greater than about 6 A. I suggest that the machine be built with a radius of action of 12 inches, corresponding to 6 A on the scale 2 inches = 1 A, but capable of handling cases up to 12 A, on the scale 1 inch = 1 A, Perhaps, for practical reasons, it would be better to keep the size down to about 10 inches radius, rather than 12 inches.

  As an example of the operation of the machine, let us consider the 5.2-residue helix. There are 5 different atoms in a residue (including the β carbon atom), and about 40 residues within the distance of 40 A, Accordingly the radial distribution curve will involve contributions of approximately 1000 interatomic distances. These would be measured with the machine in 25 sequences, of , 40 measurements each. If two investigators worked together, I estimate that three minutes sight be required to set the initial coordinates for each sequence, and that, with one investigator; operating the rotation-translation machine and the other reading and recording the distances, the 40 measurements in the sequence would be made in five minutes, giving a total of eight minutes per sequence. The 25 sequences would then require about 3 hours. With practice, the investigators could, I think, decrease this time significantly. For comparison, I may mention that Dr. Weinbaum worked for some weeks on each of the radial distribution functions that he obtained by straightcalculation.

  A very complicated structure, such as the collagen 3-chain helix, might require two or three days for calculation of its radial distribution function. I think that this is a job that should be done.

  After the interatomic distances are calculated, a suitable distribution of the scattering power over adjacent interatomic distances would be made, as was done in the earlier calculations, and the final distribution curve obtained by adding the numbers. This is not a difficult job - it should take only an hour or two, without requiring use of a calculating machine.

  Linus Pauling:W

  P.S. I have asked Peter Pauling to confer with you on the problem of constructing this radial distribution, machine - he has had a lot of experience in constructing objects with the use of the facilities in our shop. I shall have him come in to see you shortly.

• Pauling Scrapbook: Pasadena Star News article entitled "Dilworth Group Urges American Ideals Classes." RE: discusses a report from the State Senate Investigation Committee on Education which recommends a special course for California public schools teaching the difference in living standards in America and under totalitarian regimes. Forty pages of the report were devoted to LP. [Filed under LP Biographical: Box 6.006, Folder 6.22]
• Review of “States of Matter, Vol. 2 of the third edition of a Treatise on Physical Chemistry,” Chemical and Engineering News. 30 (March 1952): 928. [Filed under LP Reprints: (Publications of Linus Pauling, 1952), Box 1952p, Folder 1952p. 20]

• AHP writes cheque: to: Richfield Oil Corporation amount: $13.07 [Filed under LP Biographical: Box #4.021, Folder #3]
• Letter from Dr. Olaf Klamerth to the Gentlemen of Caltech. RE: asks if it is possible for him to work as a research assistant in one of their chemical or physiological chemical laboratories for a year's stay in Pasadena, as his wife is from Pasadena. Goes on to describe his education and work experience and includes a list of his publications to date. He is from Austria. [Note in pencil in upper right: "Please return to LP"] [Letter of response from LP to Dr. Klamerth March 11, 1952] [Filed under K: Correspondence 1952, Box #200, Folder #17]
• Letter from E.J. Crane, Editor of Chemical Abstracts, ACS to LP RE: Enclosed is an abstract written by Dr. N. Thon who summarizes the Soviet point of view regarding resonance theory. Crane notes that LP may desire to see the abstract prior to publication. [Reply from LP to Crane March 10, 1952].
• Letter from Henry Allen Moe, Guggenheim Memorial Foundation, to LP RE: Asks LP for his recommendations concerning applicants for a renewal on their fellowship. [Letter in reply from LP to Moe March 8, 1952]. [Filed under LP Science: Box 14.014, Folder 14.7].
• Letter from LP to Dr. H. C. Longuet-Higgins of the Dept. of Chem. at University of Manchester RE: writes that he read his review of Syrkin and Dyatkina's book in the last issue of Acta Crystallographica and requests some information about it. Goes on to ask what the basis for some of his statements were, specifically relating to a theory of ionic-covalent resonance. [Letter of response from Dr. Longuet- Higgins to LP March 10, 1952].
• Letter from LP to Dr. Oscar M. Hechter, The Worcester Foundation for Experimental Biology, RE: Discusses the firing of the three physicians from the Cedars of Lebanon hospital and enclosed is LP's statement regarding the event. [Filed under LP Correspondence: Box #217, Folder #5 (Lippman)].
• Letter from LP to Dr. Richard Lippman RE: Enclosed is a letter from the Worcester Foundation for Experimental Biology, and LP's reply to the letter. [Filed under LP Correspondence: Box #217, Folder #5 (Lippman)].
• Letter from LP to Esther Simpson, Society for Visiting Scientists RE: Accepts invitation to attend a reception for him and Corey while in London. [In reply to letter from Simpson to LP February 26, 1952].
• Letter from LP to L.A. DuBridge, Caltech RE: After a conversation that occurred on this same day, LP writes to clarify. Discusses his position regarding the firing of the three physicians from the Cedars of Lebanon Hospital, and why he opposes it. Also discusses his recent withdrawal from various political organizations. [Filed under LP Correspondence: Box #217, Folder #5 (Lippman)].
• Letter from LP to Mr. James A. Bryson of the Office of Naval Research RE: LP is sad to report that he will not be able to attend the symposium on high temperature chemistry as Mr. Bryson suggested in his letter because LP is already scheduled to attend the meeting of American Philosophical Society. [Letter from Mr. Bryson to LP January 25, 1952] [Filed under B: Correspondence 1952, Box #37, Folder #20]
• Letter from LP to Mr. R.S. Cahn of "Annual Reports on the Progress of Chemistry" RE: is glad to give permission to use some of his illustrations in one of their publications as was requested. [Letter from Mr. Cahn to LP January 31, 1952] [Filed under C: Correspondence 1952, Box #74, Folder #20]
• Letter from LP to Mr. Roger Hayward RE: thanks Mr. Hayward for the drawings that he sent. Mentions Gunnar Bergman. [another unrelated letter from LP to Roger Hayward January 29, 1953] [Filed under LP Correspondence: Box #152, Folder #9].
• Letter from LP to President DuBridge RE: expresses concern for the lack of academic representation on the Board of Trustees with the recent departure of Max Mason. [Filed under: LP Biographical, Box 1.030, Folder 30.3]
• Letter from LP to Prof. H.F. Mark of the Polytechnic Institute of Brooklyn RE: thanks Prof. Mark for speaking before their seminar group. Reminds Prof. Mark of their discussion about the structure for polyglycine. Asks that Prof. Mark send a small sample of the material to him. Mentions that he has worked out a more detailed structure for silk fibroin. [Letter from Prof. Mark to LP January 31, 1952, letter from Prof. Mark to LP March 10, 1952] [Filed under LP Correspondence: Box #244, Folder #1 (Mark, Herman)].
• Letter from Mr. Terrell L. Hill of the Naval Medical Research Institute, to LP RE: Sends a manuscript that was largely stimulated by LP's work with Corey. Comments are welcome. [Letter of response from LP to Hill March 8, 1952] [Filed under H Correspondence: 1952, Box #166, Folder #3]

• Letter from Alden H. Emery, Executive Secretary, American Chemical Society, to LP, RE: Writes that he is attaching a letter from Dr. Carter of UNESCO and asks if he can suggest anyone who may be interested. [Letter from Carter to Emery, February 18, 1952] [Box 14.006, Folder 6.4]
• Letter from LP to Dr. Charles M. Grossman RE: Is interested in helping them with their problem of obtaining some sort of grant for their intern Dr. James Hauschildt. Does not think that it is possible for him to obtain a Guggenheim fellowship because they do not award them to anyone who is a student in any way. However, LP goes on to list a few alternative fellowship possibilities that he is more confidant that Dr. Hauschildt could obtain. [Letter from Mr. Grossman to LP March 1, 1952] [Filed under G: Correspondence 1952, Box #140, Folder #16]
• Letter from LP to Dr. Max Rogers of Michigan State College RE: Asks for information about some silk fibroin and some photographs of the fibroin by Dr. Rogers that he took while he was at Caltech about ten years ago. LP is currently working on the structure of the fibroins and is curious about the photographic process that Dr. Rogers went through.
• Letter from LP to John G. Kirkwood RE: writes that he has taken care of all of Prof. Kirkwood's reprint orders. Suggests that now Prof. Kirkwood's office should now handle his reprints and distribution lists, and accordingly sends them to him. [Letter from Prof. Kirkwood to Beatrice Wulf [LP]] February 25, 1952, letter of response from Prof. Kirkwood to LP September 23, 1952] [Filed under LP Correspondence: Box #198, Folder #12 (Kirkwood, John G.)].
• Letter from LP to Louis Levine, Office of Naval Research RE: is looking forward to Levine's upcoming visit to Los Angeles, and will discuss questions asked in previous letter with him then. [In reply to letter from Levine to LP February 29, 1952]. [Filed under LP Science: Box 13.004, Folder 4.3].
• Letter from LP to Mr. Belknap of Owens-Illinois Glass Company RE: doubts that the work mentioned in Mr. Belknap's letter being carried on by Dr. Barber is closely related to that which LP proposed to him. Hopes one of their staff members will visit Pasadena. [Letter from Mr. Belknap to LP February 28, 1952, letter from Mr. Belknap to LP March 21, 1952] [Filed under LP Correspondence: Box #299, Folder #7 (Owens-Illinois Glass Company)].
• Letter from LP to Mr. Bull RE: Thanks for the letter, glad to hear that Mr. Bull is now the head of the department at U of Iowa's department of Biochemistry. [Letter from Mr. Bull to LP February 29, 1952] [Filed under B: Correspondence 1952, Box #37, Folder #19]
• Letter from LP to Prof. L. Reed Brantley RE: LP thanks Prof. Brantley for the letter and invitation to join the Sub-Committee of the Committee on Chemical Education. However, at this time LP is so busy with other jobs that he must decline the invitation in the fear that he could not do justice to it. [Letter from Mr. Brantley to LP March 3, 1952] [Filed under B: Correspondence 1952, Box #37, Folder #19]
• Letter from LP to William Q. Hull, Associate Editor, Chemical and Engineering News, RE: Thanks Mr. Hull for sending the photograph of Dr. Calvin presenting the Gilbert Newton Lewis Medal to him. States that he is glad to have the photograph and to have received the award. Informs Mr. Hull that he will not be attending the spring meetings this year. [Letter from Hull to LP February 28, 1952] [Filed under LP Speeches: 1951s.19]
• Letter from Mr. Ben May to LP RE: Sends LP an issue of Cancer Research about carcinogens and cancer. Hopes it will interest LP along with the articles he sent on sickle cell anemia. Promotes the chemotherapy work of a Dr. Huggins. Hopes LP will contact Dr. Huggins so that they might work together. [Letter from Mr. Ben May to LP March 3, 1952, letter from LP to Mr. May March 10, 1952] [Filed under LP Correspondence: Box #244, Folder #5 (May, Ben)].
• Letter from Prof. Haakon Haraldsen to LP RE: writes to LP asking if he may visit Caltech between April 1 and April 8. Also suggests that he give a speech at that time on the phase and structure relations of the sulfides, selenides and tellurides of the transition elements in the first long row of the periodic system. [Note in upper right in pencil: "Henston scheduled for April 2."] [Letter from LP to Haakon Haraldsen March 10, 1952] [Filed under H Correspondence: 1952, Box #166, Folder #3]
• Meeting minutes prepared by Dean Lacey regarding graduate research assistantships at Caltech. [Filed under: LP Biographical, Box 1.018, Folder 18.2]

• Letter from LP to Dean A. R. Choppin of Louisiana State University RE: writes that Arthur LeRosen's friends at Caltech send condolences to his mother and to Dean Choppin. [telegram included from A. R. Choppin to LP telling LP of the death of Arthur LeRosen.] [Letter of response from Dean Choppin to LP March 10, 1952] [Filed under L: Correspondence 1952, Box #230, Folder #18]

• AHP writes cheque: to: Southern Counties Gas Co. amount: $33.83 [Filed under LP Biographical: Box #4.021, Folder #3]
• AHP writes cheque: to: Sue Perry amount: $9.50 [Filed under LP Biographical: Box #4.021, Folder #3]
• LP writes cheque: to: Carl Spaatz, Iron Curtain Refugee Campaign amount: $10.00 [Filed under LP Biographical: Box #4.021, Folder #3]
• Letter from J.P. Youtz, Business Manager, Caltech to LP RE: Informs LP that his application for a patent ("Propellant and Method of Controlling the Burning Thereof - Serial No. 600,043) has been rejected. This is in spite of evidence that the device is very patentable.
• Letter from R.A. Peters, Oxford University to LP RE: Invites LP to give a lecture on protein structure at the university.
• Memo from B. H. Sage to J. H. Sturdivant, cc LP RE: Submits the Chemical Engineering laboratory budget proposal for fiscal year 1952-1953. [Filed under: LP Biographical, Box 1.021, Folder 21.3]

• Informational flyer titled "The Appeal of M. Frederic Joliot-Curie, President of the World Council of Peace, Against the Use of Bacteriological Weapons" tells about how the United States used bacteriological weapons against Korea. [Filed under LP Peace: Box 4.017, Folder 17.1]
• Letter from Arthur W. Davidson of the University of Kansas, Lawrence to LP RE: Informs LP that their department is currently thinking about the problem of the University's evaluation of its graduate students. Asks that LP send any information possible regarding Caltech's evaluation processes and techniques so as to give them an idea of what other Universities are up to. [Letter of response from LP to Dr. Davidson April 4, 1952] [Filed under D: Correspondence 1952, Box #98, Folder #17]
• Letter from LP to Dr. Lapp RE: In reply to Dr. Lapp's February 4, 1952 letter, ranks a list of graduate students according to their ability, as judged by members of the Caltech staff. Comments on these rankings. [Filed under LP Science: Box 14.028, Folder 28.1]
• Letter from LP to Henry Allen Moe, Guggenheim Memorial Foundation RE: LP gives his comments for various applicants for a fellowship renewal. [In reply to letter from Moe to LP March 4, 1952]. [Filed under LP Science: Box 14.014, Folder 14.7].
• Letter from LP to Mr. Terrell L. Hill of the Naval Medical Research Institute RE: writes that he has read the manuscript that Mr. Hill sent on mechanical models of elastic polyelectrolytes and proteins. Has no detailed comments at this time. [Letter from Mr. Hill to LP March 4, 1952] [Filed under H Correspondence: 1952, Box #166, Folder #3]
• Letter from Orfeo Angelucci re: Nuclear Causation. Discusses photographs of the tobacco mosaic virus taken by electron-microscope, "point of departure," and the factor "H" basic quantum. Requests reply from LP regarding these topics. [Reply from LP March 11, 1952] [Filed under A: Correspondence 1952, Box #12.18]

• LP Political: Passport Problems, Jan-March 1952: Note from [illegible signature, Dr. Detlev Bronk, Pres. Of NAS?] of the National Academy of Sciences to LP RE: writes to LP in sympathy about his passport problems and offers to help. Mentions involving the Security Board of the Pentagon as a solution to LP's passport problem. [Filed under LP Biographical: Political Issues: Box 2.002, Folder 2.5]

• Letter from Dean A. R. Choppin to LP RE: thanks LP for the letter of sympathy at the passing of their mutual friend, Arthur LeRosen. [Letter from LP to Dean Choppin March 6, 1952, related letter from LP to Mrs. Louise LeRosen April 8, 1952] [Filed under L: Correspondence 1952, Box #230, Folder #18]
• Letter from Esther Simpson, Society for Visiting Scientists to LP RE: glad that LP accepted invitation for reception being held. [Related letter from Esther Simpson to LP February 26, 1952].
• Letter from LP to Chuck Newton of Caltech RE: A list of men that LP proposes for a "contact man." Suggests that Dr. J.W. Otvos be given top consideration. [Filed under: LP Biographical, Box 1.030, Folder 30.3]
• Letter from LP to Dave Shoemaker of MIT RE: writes to find out about what he is doing with red phosphorus. Also lets him know about the completion on the work on the Mg32 (AlZn)49 structure. Briefly mentions "Fred." [Letter from LP to Dr. David Shoemaker January 25, 1952, letter from Prof. Shoemaker to LP March 21, 1952] [Filed under LP Correspondence: Box #363, Folder #3: File (Shoemaker, David and Clara 1942-1995)].
• Letter from LP to Dr. E.J. Crane, Editor, Chemical Abstracts RE: Thanks him for sending the abstract. [In reply to letter from Crane to LP March 4, 1952].
• Letter from LP to Dr. Richard W. Lawton RE: writes that under separate cover they have sent him reprints of their work on proteins. Is interested to know more about the soft body tissues that he is investigating. Requests a reference to the report of the finding by Gross of a double helix by electron microscopy. Goes on to discuss their investigation of the principal structural feature of the protein in specific tissues. [Letter from Dr. Lawton to LP February 18, 1952, letter of response from Dr. Lawton to LP March 19, 1952] [Filed under L: Correspondence 1952, Box #230, Folder #18]
• Letter from LP to E.N.C. Andrade, The Royal Institute, London RE: Is doubtful that trip to London will be made, and to regretfully make arrangements for someone else to give the lecture.
• Letter from LP to Eileen Martin, W.H. Freeman and Co., RE: LP says that the revisions he intends to make in General Chemistry shouldn't have a significant influence on the laboratory manual. [Filed under LP Books, 1953b.6]
• Letter from LP to M. J. F. Joliet RE: thanks M. Joliet for the letter and for the enclosed reprints. Is pleased to see the close correlation that he has shown between the surface tension and atomic radii. [Note from M. Joliet to LP February 28, 1952] [Filed under J: Correspondence 1952, Box #192, Folder #18]
• Letter from LP to Mr. Ben May RE: thanks Mr. May for all of the articles that he sent on sickle cell anemia. Acknowledges the work of Dr. Huggins' in cancer research. Still has not formulated his plans for fundamental medical research well enough to answer his question as to how much money it would require to allow the work to be done. [Letter from Mr. Ben May to LP March 5, 1952, letter from Mr. Ben May to LP March 28, 1952] [Filed under LP Correspondence: Box #244, Folder #5 (May, Ben)].
• Letter from LP to Mr. Bern Dibner of the Burndy Engineering Co., Inc. RE: Thanks Mr. Dibner for the letter and the notice in the New York Times. Agrees that it is not right when people are oppressed because of their political views, so is sending $10 to the International Rescue Committee to help establish the Frontier Freedom Stations. [Letter from Mr. Bern Dibner to LP December 3, 1951] [Filed under D: Correspondence 1952, Box #98, Folder #17]
• Letter from LP to Mr. Fernando L. Carraro RE: LP advises Mr. Carraro to study mathematics. Answers some questions on the field emission electron microscope, but says that Caltech does not currently use one. [Letter from Mr. Carraro to LP February 28, 1952] [Filed under: LP Biographical, Box 1.020, Folder 20.5]
• Letter from LP to Mr. G. Oldeman RE: writes that he returns the manuscript that he sent last year. Does not have a definite opinion about it. Says that he feels that it is worthwhile to search for regularities in the properties of the elements, in relation especially to atomic number. [Letters from Mr. G. Oldeman to LP June 5, 1951, August 20, 1951] [Filed under O: Correspondence 1952, Box #300, Folder #14]
• Letter from LP to Mr. J. Kohl of Tracerlab Inc. RE: in response to Mr. Kohl's letter of November 29, 1951, LP writes that he is unable to visit San Francisco during the coming months, but gives best wishes to the San Francisco chapter of the "Taltech" [Caltech?] Alumni. [Filed under K: Correspondence 1952, Box #200, Folder #17]
• Letter from LP to Mr. Ralph M. Hunter, Pres. of the Electrochemical Society, Inc. RE: has thought over the matter suggested in Mr. Hunter's letter and thinks that due to such a small number of undergraduate students at Caltech, introducing a special course in electrochemistry would be impractical, though the subject is included in their work in physical chemistry. [Letter from Mr. Ralph M. Hunter to LP November 20, 1951] [Filed under E: Correspondence 1952, Box #112, Folder #18]
• Letter from LP to Prof. Haakon Haraldsen RE: Writes that he is glad to learn that he can visit in April. Invites Mr. Haraldsen to speak on April 9 about sulfides, selenides and tellurides of the transition elements. Also asks that he speak the next day on the magnetic properties of those substances. [Letter from Prof. Haakon Haraldsen to LP March 5, 1952, related memo from LP to Jerry Donahue March 10, 1952] [Filed under H Correspondence: 1952, Box #166, Folder #3]
• Letter from Louis Levine, Naval Research, to LP RE: the request for a renewal of a research contract has been granted. [Related letter from [Filed under LP Science: Box 13.004, Folder 4.3].
• Letter from Mr. H. C. Longuet-Higgins to LP RE: thanks LP for his letter and goes on to explain his statement in his review of the book by Syrkin and Dyatkina. LP apparently took issue with the statement about the theory of ionic-covalent resonance in his last letter. [Note in pencil at top: "not to be answered."] [Letter from LP to Mr. Longuet-Higgins March 4, 1952].
• Letter from Prof. H.F. Mark of the Polytechnic Institute of Brooklyn to LP RE: in response to LP's request, writes that he is not able to find any acceptable samples of polyglycine to send LP. Is trying to locate a sample of any synthetic polypeptides to send. [Letter from LP to Prof. Mark March 4, 1952, letter from LP to Prof. Mark March 31, 1952] [Filed under LP Correspondence: Box #244, Folder #1 (Mark, Herman)].
• Memo from LP to Jerry Donohue cc: Mrs. Townsend RE: writes that he has asked Prof. Haakon Haraldsen of the U of California, Berkeley,. to give two talks [April 9 and 10] on sulfides, selenides, and tellurides of the transition elements etc. Suggests giving an honorarium. [related letter from LP to Prof. Haakon Haraldsen March 10, 1952] [Filed under H Correspondence: 1952, Box #166, Folder #3]

• AHP writes cheque: to: Fashion Cleaners amount: $15.75 [Filed under LP Biographical: Box #4.021, Folder #3]
• LP writes cheque: to: Caltech Inst. Tech. amount: $495.45 [Filed under LP Biographical: Box #4.021, Folder #3]
• LP writes cheque: to: Ingham, Coats and Payne amount: $26.00 [Filed under LP Biographical: Box #4.021, Folder #3]
• Letter from Francis Gray, Chairman of the Board of Trustees of the Massachusetts General Hospital to LP RE: Discusses the recommendations of the Scientific Advisory Committee, as addressed in LP's February 11, 1952 letter. Expresses his gratitude to LP for serving as an advisor on the Board of Trustees. [Filed under LP Science: Box 15.008, Folder 8.4]
• Letter from Joseph S. Fruton of Yale U School of Medicine to LP RE: Request permission to use several figures from LP's article in the "Proceedings of the National Academy of Sciences, 1951" for their publication of a book called "General Biochemistry." [Letter of response from LP to Joseph S. Fruton March 14, 1952] [Filed under F: Correspondence 1952, Box #128, Folder #17]
• Letter from LP to Dr. Olaf Klamerth RE: writes that Dr. Klamerth's letter was turned over to him, and it seems that there is a chance that they may be able to offer him a position if something suitable opens up. [Note in pencil in upper right: "Letter forwarded to Haagen-Smit, Niemann"] [cc included with this letter from LP to Prof. Haagen-Smit and Prof. Niemann asking: "Do you think that you might be interested in this man? L.P."] [Letter from Dr. Klamerth to Caltech March 4, 1952, related letter from LP to Prof. H. Mark March 11, 1952] [Filed under K: Correspondence 1952, Box #200, Folder #17]
• Letter from LP to Prof. H. Mark RE: asks for a opinion of Dr. Olaf from Prof. Mark as Dr. Olaf mentioned that his training in physical chemistry was received in Vienna from him. [related letter from LP to Dr. Olaf Klamerth March 11, 1952, letter of response from Prof. H. Mark March 20, 1952] [Filed under K: Correspondence 1952, Box #200, Folder #17]
• Letter from LP to Sir Peters, Oxford University RE: Thanks him for invitation to speak at Oxford, but it is unlikely that the trip to England will be made.
• Letter from Mr. Herbert S. Bailey of Princeton University Press to LP RE: It is believed by members of their Biology Department that LP should write a book on "Structure of Molecules." Princeton U. Press would be honored to print it if he decided to write the book. [previous letter from Mr. Bailey to LP June 29, 1951, letter of response from LP to Mr. Bailey March 31, 1952] [Filed under: LP Correspondence: Box #312, Folder #17].
• Letter from Robert A. Lehman, director of Research at Campbell Pharmaceutical Co., to LP RE: was referred from Dr. Hirschfelder to LP in his quest for information concerning a phosphorus atom for the Fisher-Hirschfelder-Taylor atom model set. Wants to find specifications for the phosphorus atom and asks LP if he knows of any literature for reference. [Letter of response from LP to Mr. Lehman March 14, 1952] [Filed under L: Correspondence 1952, Box #230, Folder #18]
• Letter reply from LP to Mr. Orfeo Angelucci re: states that he is working in other fields and has no comments to make on Angelucci's suggestions. Therefore there is no need for them to meet. [Filed under A: Correspondence 1952, Box #12.18]
• Memo from LP to Prof. Bates RE: asks what he should say in answer to a letter from Prof. Malherbe who is requesting copies of Prof. Bates' mimeographed notes and also his problem sheets. [Note of response in pencil at bottom of memo from Prof. Bates to LP RE: writes that notes and problems covering thermodynamic chemistry are available and can be mimeographed, however, he doesn't think that they should distribute them generally] [related letter from LP to Prof. F. E. Malherbe April 4, 1952] [Filed under M: Correspondence 1952, Box #256, Folder #3]

• Letter from Henry Allen Moe, Guggenheim Memorial Foundation, to LP RE: Thanks LP for his opinions regarding fellowship candidates, and then expresses doubt regarding a grant for Dr. Richard Lippman. [Reply from LP to Moe March 27, 1952]. [Filed under LP Science: Box 14.014, Folder 14.7].
• Letter from Hugh J. Creech, The Institute for Cancer Research, to LP RE: acknowledges upcoming meeting of the Protein Substitutes Group. [Filed under LP Science: Box 13.004, Folder 4.3].
• Letter from John E. Loenard to Dr. Dunitz [cc: LP] RE: writes that he sends at LP's request samples of a couple of prepared and mounted crystals. [Filed under LP Correspondence: Box #96, Folder #21: file (Jack Dunitz)].
• Letter from Mr. Douglas Brookfield to LP RE: requests that LP deliver an enclosed letter to a Mr. J.T. Marsh of Messrs who will be visiting Caltech shortly from England. The enclosed letter is the official clearance for a visit he wishes to make to a station of the U.S. Department of Agriculture. [Letter of response from LP to Douglas Brookfield March 25, 1952] [Filed under B: Correspondence 1952, Box #37, Folder #19]

• Letter from LP to A.L. Wirin RE: LP is sorry to hear of Wirin's recent illness. Also asks if Wirin has heard from the editor of American Legion Magazine regarding the publication of LP's letter. Also asks advice on having the letter printed in the Journal of the American Chemical Society if American Legion rejects it.
• Letter from LP to Col. Malcolm D. Seashore, Chief Technical Requirements, Division Air Technical Intelligence Center RE: Is prepared to talk with Capt. James W. Rodgers whom Col. Malcolm mentioned was planning to visit Caltech. Will be glad to discuss the question about making contractual arrangements with part-time consultant services of some members of the faculty. [telegram from Col. Malcolm D. Seashore to LP [no date] included with letter] [Filed under LP Correspondence: Box #378, Folder #6].
• Letter from LP to Dean Lacey RE: LP supports Dr. David P. Mellor in recommending Hans Freeman [does not say what the recommendation is for]. [Filed under: LP Biographical, Box 1.018, Folder 18.2]
• Letter from LP to Dr. Francis Blacet of U of California L.A. RE: Calls attention to a speech by Dr. Julian Percy on the topic of Science and a Brave New World to occur on March 25. [Letter in regards to this one from Carr to LP February 26, 1952] [Filed under C: Correspondence 1952, Box #74, Folder #20]
• Letter from LP to Dr. I. Fankuchen RE: writes that he and Dr. Corey are planning to go to the Royal Society meeting on Protein Structure. He has not yet been able to arrange for any member of his group to be present at the American Crystallographic meeting. [previous letter from Dr. Fankuchen to LP February 7, 1952, following letter from Dr. Fankuchen to LP March 31, 1952] [Filed under LP Correspondence: Box #117, Folder #4].
• Letter from LP to Dr. Oroshnik RE: comments on Dr. Oroshnik's work in response to his letter. Says his work appears first-rate to him. Points out some results in Dr. Oroshnik's work that seem to him and to Prof. Zechmeister to be somewhat abnormal. [Letter from Dr. Oroshnik to LP February 20, 1952, letter of response from Dr. Oroshnik to LP April 10, 1952] [Filed under O: Correspondence 1952, Box #300, Folder #14]
• Letter from LP to Dr. Percy L. Julian RE: has heard that Dr. Percy will be speaking on March 25th at Occidental college and asks that he come to visit Caltech as well as lunch with him during that time. [Letter from Mr. William C. Carr to LP February 26, 1952] [Filed under C: Correspondence 1952, Box #74, Folder #20]
• Letter from LP to Dr. Robert D. Vold of University of Southern California RE: Calls him to the attention of a speech by Dr. Julian Percy on the topic of Science and a Brave New World to occur on March 25. [Letter in regards to this one from Mr. William C. Carr to LP February 26, 1952] [Filed under C: Correspondence 1952, Box #74, Folder #20]
• Letter from LP to Dr. Yasutaro Miyasaki RE: writes that they would be happy to have them visit the laboratories of Caltech. [Letter from Dr. Miyasaki to LP February 12, 1952] [Filed under M: Correspondence 1952, Box #256, Folder #3]
• Letter from LP to Lord Rothschild of Trinity College. [Letter from Lord Victor Rothschild to LP February 13, 1952, letter from LP to Lord Rothschild April 22, 1952] [Filed under LP Correspondence: Box #336, Folder #6: File (Rothschild, Victor.)]

  March 13, 1952

  Lord Rothschild

  Morton Hall

  Cambridge

  England

  Dear Victor:

  Ava Helen and I thank you for your invitation to us to spend the week with you, beginning May 14. We are glad to accept, at any rate tentatively.

  I have to say that it may turn out to be impossible for us to come to England this spring. Accordingly, I trust that you will not count on our coming to visit you to such an extent as to permit it to interfere with other plans. I have, in fact, gone so far as to write to Andrade, saying that I thought it not unlikely that I would not be able to give my Friday evening discourse on May 16, and that it probably would be wise for him to schedule someone else for it. I have not written the Royal Society to this effect - if I am disappointed in my hope to be present at the conference on proteins, nothing can be done by the Royal Society anyway: the conference will be held, and Corey will, I trust, present the material that I have planned to present.

  What Ava Helen and I had hoped for was a rather quiet month in England, and a week visiting with you and Tess would be wonderful. In fact, I would like very much to help you carry out an experiment on bull spermatozoa, as you suggest.

  Life is very interesting right now. Every day something new in the field of protein structure turns up. At the moment I am working on the structure of silk fibroin - I think that we have succeeded in proving that the crystalline part of silk fibroin does not contain any tyrosine residues, and from this, and other facts, we conclude that the molecules are different in composition along their length, perhaps with tyrosine only at the ends, and that the middle parts of the molecules crystallize, leaving the ends as a frayed-out amorphous bulb.

  Cordially yours,

  Linus Pauling:W

• Letter from LP to Mr. William C. Carr RE: writes that he has posted the notice about the benefit speech by Dr. Julian on the bulletin at Caltech, and has contacted a couple of chairmen of chemistry departments in Southern California about the program. [Letter of response from Mr. Carr to LP March 17, 1952] [Filed under C: Correspondence 1952, Box #74, Folder #20]
• Letter from LP to the Secretary of the Senate RE: requests that they send him 12 copies of the Ninth Report of the Senate Investigating Committee on Education "Are Loyalty Oaths Effective?" [Letter of response from J. A. Beek, Secretary of the Senate, to LP March 17, 1952] [Filed under LP Correspondence: Box #378, Folder #6].
• Letter from V. C. Wilson to LP RE: invites LP and his staff members to a symposium on Magnetism at the U. of Maryland. [Letter of response from LP to V. C. Wilson April 15, 1952] [Filed under LP Correspondence: Box #443, Folder #20].

• AHP writes cheque: to: Market Basket amount: $25.00 [Filed under LP Biographical: Box #4.021, Folder #3]
• AHP writes cheque: to: Sue Perry amount: $45.00 [Filed under LP Biographical: Box #4.021, Folder #3]
• Copy of an informational letter from JG Growther, Secretary General to All Members of the Executive Council and Affiliated Organizations of the World Federation of Scientific Workers RE: discusses the refusal of visas to the foreign members of the Federation by the British Government, thus disabling a meeting of the council scheduled for March 22 and 23. Lists its members. Includes copy of letter from the Secretary General and the Home Office as well as a Statement from the Federation to the Press. [Filed under LP Biographical: Political Issues: Box 2.002, Folder 2.5]
• Letter from Frances V. Benner, Special Assistant, American Chemical Society, RE: Writes that local sections of the American Chemical Society in the Southeast, Virginia, the Carolinas, and Florida have not heard LP lecture and would be interested in having him visit; asks if he would be available for a lecture tour. [Letter from LP to Benner, April 15, 1952] [Box 14.006, Folder 6.4]
• Letter from LP to Dr. Robert A. Lehman RE: In response to Dr. Lehman's question about the dimensions of a phosphorus atom, he suggests the best model to use for the substances that he mentioned. [Letter from Dr. Lehman to LP March 11, 1952] [Filed under L: Correspondence 1952, Box #230, Folder #18]
• Letter from LP to Prof. Joseph S. Fruton of Yale U School of Medicine RE: gives them permission to reproduce the figures mentioned in their letter. [Letter from Prof. Joseph S. Fruton to LP March 11, 1952] [Filed under F: Correspondence 1952, Box #128, Folder #17]
• Letter from LP to Prof. Makisaburo Ogasawara of Nagoya Institute of Technology RE: writes that they are returning his two notebooks on Exercises in Quantum Mechanics. [Letter from Prof. Ogasawara to LP August 15, 1951, letter of response from Prof. Ogasawara to LP April 13, 1952 [Filed under O: Correspondence 1952, Box #300, Folder #14]
• Note from Jack Gardner of Gardner Research Service to the gentlemen of the Chemistry department RE: Requests information about any chemicals that can be used to absorb or inhibit infrared and ultraviolet light. [Letter of response from LP March 24, 1952] [Filed under G: Correspondence 1952, Box #140, Folder #16]

• AHP writes cheque: to: Walter Fritts amount: $39.00 [Filed under LP Biographical: Box #4.021, Folder #3]
• Letter from Haakon Haraldsen to LP RE: thanks LP for the welcome to visit the Caltech Institution. It is fine with him to give his speech on April 9th and 10th. Discusses further lodging and travel plans. [Note in pencil on upper right: "Please return to L.P."] [related letter from LP to Haakon Haraldsen March 10, 1952, letter of response from LP to Prof. Haraldsen March 24, 1952] [Filed under H Correspondence: 1952, Box #166, Folder #3]
• Letter from Joseph J. Friedman to LP RE: highlights the concern of the atmosphere of McCarthyism that is growing with the Rosenberg case, and wishes to meet with LP to discuss particulars of the case.
• Letter from LP to Dr. Richard Lippman RE: LP introduces himself by writing that he has been under Dr. Lippman's care since the death of Dr. Addis. Informs Dr. Lippman that when he was fired for political reasons, LP prepared and gave a statement in his defense. LP also had previously agreed to take part in a meeting of patients of dismissed doctors. However, due to the political propaganda on the flyers and the repeated use of Caltech's name in conjunction with this effort contrary to his desires, LP is disallowing the use of his name in connection with the Committee on Medical Freedom. [Reply from Dr. Lippman sent March 19, 1952] [Filed under LP Science: Box 14.040, Folder 40.2]
• Letter from LP to Editor of the Los Angeles Times, RE: LP issued a protesting statement after learning that, for political reasons, Dr. Thomas Addis and two other physicians were dismissed from the staff of the Cedars of Lebanon Hospital. LP also decided to participate in a public meeting on this matter but after the notice for the meeting was written in a form that LP disapproved of, he withdrew from participating. [Filed under LP Manuscripts of Articles: (Manuscripts and Typescripts of Articles by Linus Pauling, 1952), Box 1952a, Folder 1952a.6]
• Telegraph from LP to Andrade, The Royal Institution, RE: May 16th discourse is possible; letter follows [Letter from LP to Andrade dated March 10, 1952; March 18, 1952] [Filed under LP Travel: Box #1.001 Folder 1.10]

• Note from Leslie E. Sutton of Magdalen College, Oxford to LP RE: writes to inform LP of Sidgwick's recent death. [Letter from LP to Dr. Leslie Sutton March 24, 1952] [Filed under LP Correspondence: Box #370, Folder #8: File (Sutton, Leslie E.)].

• AHP writes cheque: to: Adohr Milk Farms amount: $10.71 [Filed under LP Biographical: Box #4.021, Folder #3]
• AHP writes cheque: to: Athenaeum amount: $9.15 [Filed under LP Biographical: Box #4.021, Folder #3]
• AHP writes cheque: to: C. E. Eminger amount: $34.51 [Filed under LP Biographical: Box #4.021, Folder #3]
• AHP writes cheque: to: Chadwick School amount: $22.80 [Filed under LP Biographical: Box #4.021, Folder #3]
• AHP writes cheque: to: Mira Loma Mutual Water Co. amount: $4.55 [Filed under LP Biographical: Box #4.021, Folder #3]
• AHP writes cheque: to: Pacific Tel and Tel amount: $24.44 [Filed under LP Biographical: Box #4.021, Folder #3]
• AHP writes cheque: to: S. Cal Edison Company amount: $31.40 [Filed under LP Biographical: Box #4.021, Folder #3]
• Handwritten notes by LP on the structure of the collagen helix. [Filed under LP Science: Box 6.004, Folder 4.4]
• LP writes cheque: to: himself, Counter Check amount: $100.00 [Filed under LP Biographical: Box #4.021, Folder #3]
• Letter from Donald Jones of N.W. Ayer and Son Inc. RE: Thanking LP for his interview regarding their planned television program for the American Telephone and Telegraph Co. Thanking LP for information about Dr. Oppenheimer. [Filed under A: Correspondence 1952, Box #12.18]
• Letter from J. A. Beek, Secretary of the Senate, to LP RE: in response to LP's letter, he responds that the rules provide that they give no more than two copies of any legislative publication to any one individual. Is able to sell additional copies, so sends 12 copies with a bill. [Letter from LP to the Secretary of the Senate March 13, 1952, letter of response from LP to Mr. Beek, Secretary of the Senate April 24, 1952] [Filed under LP Correspondence: Box #378, Folder #6].
• Letter from LP to Dr. Edwin Brand RE: Details the particulars of the April 22, 1952 meeting of the Protein Substitutes Group, and goes on to give a brief summary of his own work regarding protein structure. [Filed under LP Science: Box 13.004, Folder 4.3].
• Letter from LP to Dr. Elkan R. Blout RE: would like to have him attend the April 22, 1952 meeting of the Protein Substitutes group and discuss the work on plasma extenders. [Filed under LP Science: Box 13.004, Folder 4.3].
• Letter from LP to Dr. Emil Smith, University of Utah RE: Invitation to attend the April 22, 1952 meeting of the Protein Substitutes Group. [Filed under LP Science: Box 13.004, Folder 4.3].
• Letter from LP to Dr. Henry Quastler, University of Illinois RE: Invitation to attend the April 22, 1952 meeting of the Protein Substitutes Group. [Filed under LP Science: Box 13.004, Folder 4.3].
• Letter from LP to Dr. Ray Pepinsky, Penn State College RE: Invitation to attend the April 22, 1952 meeting of the Protein Substitutes Group. [Filed under LP Science: Box 13.004, Folder 4.3].
• Letter from LP to G.B.B.M. Sutherland RE: Invitation to attend the April 22, 1952 meeting of the Protein Substitutes Group. [Filed under LP Science: Box 13.004, Folder 4.3].
• Letter from LP to Hans Neurath, University of Washington RE: Invitation to attend the April 22, 1952 meeting of the Protein Substitutes Group. [Filed under LP Science: Box 13.004, Folder 4.3].
• Letter from LP to Irving Klotz, Northwestern University RE: Invitation to attend the April 22, 1952 meeting of the Protein Substitutes Group. [Filed under LP Science: Box 13.004, Folder 4.3].
• Letter from LP to J.D. Ferry, University of Wisconsin RE: invitation for Ferry to attend the April 22, 1952 meeting on protein substitutes and present his current research. [Filed under LP Science: Box 13.004, Folder 4.3]
• Letter from LP to J.H. Highberger, United Shoe Machinery RE: Invites Highberger to come to the April 22, 1952 meeting of the Protein Substitutes Group to discuss his work on collagen. [Filed under LP Science: Box 13.004, Folder 4.3].
• Letter from LP to J.S. Fulton, Yale University RE: Invitation to attend the April 22, 1952 meeting of the Protein Substitutes Group. [Filed under LP Science: Box 13.004, Folder 4.3].
• Letter from LP to John G. Kirkwood, Yale University RE: Invitation to attend the April 22, 1952 meeting of the Protein Substitutes Group. [Filed under LP Science: Box 13.004, Folder 4.3].
• Letter from LP to Members of the Protein Substitutes Group RE: Next meeting is planned for April 22, 1952. [Filed under LP Science: Box 13.004, Folder 4.3].
• Letter from LP to N.A.M. MacKenzie, RE: LP thanks MacKenzie for the opportunity to have spoken at the University of British Columbia. LP would like to call to MacKenzie’s attention to the fact that the check mentioned in MacKenzie’s letter of February 27th was not enclosed in the letter. [MacKenzie’s letter February 27, 1952] [MacKenzie’s reply April 3, 1952] [Filed under LP Speeches: (Speeches by Linus Pauling, 1952), Box 1952s, Folder 1952s.5]
• Letter from LP to R.M. Fuoss, Yale University RE: invitation to attend and make a short presentation of current research at the April 22, 1952 meeting of the Protein Substitutes Group. [Filed under LP Science: Box 13.004, Folder 4.3]
• Letter from Mr. Aram L. Dinguilian to LP RE: Writes in defense of his own disputed theories about protein structure after reading reprints sent to him by LP describing some of the work that LP and Prof. Corey have been doing on the same subject. Goes into great detail about what his own theories are and includes several pages of diagrams and sketches to facilitate his writings. [Letter from LP to Mr. Dinguilian January 30, 1952, letter of reply from LP to Mr. Dinguilian March 27, 1952] [Filed under D: Correspondence 1952, Box #98, Folder #17]
• Letter from Mr. William C. Carr to LP RE: thanks LP for his letter of March 13, 1952. Thanks LP for his interest in the speech by Dr. Julian that is being promoted by Mr. Cann. Sends tickets for the speech in the hopes that LP might be able to sell them. [Letter from Mr. Cann February 26, 1952, letter in response from LP to Mr. Carr March 26, 1952]. [Note on the back of the letter "Ambassador 1115 3300 Wilshire."] [Filed under C: Correspondence 1952, Box #74, Folder #20]

• Letter from LP [signed in his absence by BW] to Dr. W. J. Wiswesser RE: responds to Dr. Wiswesser's letter by writing that he believes that his questions are more suited for an organic chemist and not himself. [Letter from Dr. Wiswesser to LP February 6, 1952] [Filed under LP Correspondence: Box #443, Folder #20].
• Letter from LP to E.N.C. Andrade. [Filed under LP Correspondence: Box #6, Folder #10]

  March 18, 1952

  Dr. E. N. C. Andrade

  The Royal Institution

  21, Albemarle Street

  London, W. 1

  England

  Dear Andrade:

  I trust that you received my cable, as well as my earlier letter.

  My situation at present is that I have hope that I shall be in England in May, and I think that the probability is great enough to justify my planning to present the Friday evening discourse on May 16. There is, however, some chance, as stated in my earlier letter, that I shall not be able to present the discourse, and it was for this reason that I wrote to you. A significant increase in the probability of my being there caused me to send the cable. I am afraid that I cannot estimate these probabilities numerically at the present time.

  Under these circumstances I shall understand your action if you decide to make another arrangement immediately for the May 16 discourse. Nevertheless, I hope to come to England, and I hope that I may give the discourse at that time.

  Cordially yours,

  Dictated by Linus Pauling

  Signed in his absence:W

• Letter from LP to Mr. David M. Keiser RE: as Mr. Keiser requested of LP in his last letter, LP writes a thorough discussion of Mr. Hass, who aspires to take the position of full-time president of their organization, the Sugar Association, Inc. [Letter from Mr. Keiser to LP February 26, 1952] [Filed under K: Correspondence 1952, Box #200, Folder #17]
• Letter from LP to Prof. G. Hagg RE: writes in response to Prof. Hagg's letter that he has planned to see to it that Mr. Brynielsson will be entertained during his visit to the laboratories, as he himself will not be in town. [Letter from Prof. G. Hagg to LP February 21, 1952, related memo from LP to G. Bergman March 18, 1952] [Filed under H Correspondence: 1952, Box #166, Folder #3]
• Letter from LP to Professor Dr. Heinrich Mitteis, President der Bayerischen Akademie der Wissenschaften, RE: Expresses his appreciation for being elected as Corresponding Member of the Mathematics Nature Science Class of the Bavarian Academy of Sciences. [Filed under LP Awards: 1952h.2]
• Letter from LP to Sr. Juan Llado Martorell RE: writes that he was interested to read Sr. Martorell's letter discussing his new theory of the structure of organic compounds. However, he goes on to discuss that he finds that several of the structures that he has given are incorrect. [Letter from Sr. Llado Martorell to LP March 3, 1952] [Filed under M: Correspondence 1952, Box #256, Folder #3]
• Letter from Mr. Farrington Daniels to LP RE: Thanks LP for his letter suggesting possible candidates for their instructorship in Physical Chemistry at the U of Wisconsin. They have decided on accepting Dr. Daniel Cornwell of Harvard and Iowa.
• Memo from LP to G. Bergman RE: alerts Mr. Bergman of the upcoming visit of Mr. Harry Brynielsson to the Gates and Crellin Labs. Asks that he entertain Mr. Brynielsson, as he, LP, will possibly be away at the time. [related letter from LP to Prof. G. Hagg February 18, 1952] [Filed under H Correspondence: 1952, Box #166, Folder #3]

• Invitation sent by The Franklin Delano Roosevelt Club to LP to attend a meeting in which Dr. Richard W. Lippman will be speaking. [pamphlet enclosed] [Filed under LP Science: Box 14.040, Folder 40.2]
• Letter from Dr. Dorothy Hodgkin of the Chemical Crystallography Laboratory. University Museum, Oxford RE: writes to LP on the behalf of David Davies, who she recommends for the Caltech Chem. lab. Also acknowledges that LP is soon to visit England, suggests that he give a lecture on proteins. Mentions LP's papers on proteins. [Letter of response from LP to Dr. Hodgkin March 27, 1952] [Filed under LP Correspondence: Box #159, Folder #12 (The Lalor Foundation; Dorothy Hodgkin)].
• Letter from Dr. Lippman to LP RE: Replies to LP's March 19, 1952 letter. Dr. Lippman informs LP that both pamphlets with his name and title were printed before LP approached him about the issue, and that no other leaflets have been produced since their discussion. He is very sorry that LP is withdrawing his active support for the case. He would be happy to discuss the matter at LP's convenience. [Reply from LP on March 24, 1952] [Filed under LP Science: Box 14.040, Folder 40.2].
• Letter from Dr. Richard W. Lawton to LP RE: thanks LP for the letter and reprints. Sends LP reprints which indicate the line of investigation he is pursuing on the mechanics of body tissue. Gives some references relating to elastic tissues. Goes on to discuss their work on elastic tissues. [Note attached to letter: "Dr. Pauling: One of the boys will prepare a summary of these references for you. RBC"] [Letter from LP to Dr. Lawton March 10, 1952, letter of response from LP to Dr. Lawton March 31, 1952] [Filed under L: Correspondence 1952, Box #230, Folder #18]
• Letter from Emil Smith, University of Utah, to LP RE: wont be able to attend the Protein Substitutes Meeting occurring on April 22, 1952. [In Reply to letter from LP March 17, 1952]. [Filed under LP Science: Box 13.004, Folder 4.3].
• Letter from J.L. Crammer, Society for Visiting Scientists, to LP RE: Thanks him for accepting invitation to reception and invites LP to attend a discussion on "The Origin of Man".
• Letter from LP to Mr. Myron A. Bantrell RE: informs him that he has attempted to formulate a budget for the first year of the operation of the California Society of Fellows as Mr. Bantrell has requested. Describes the budget proposal in a general way. [Filed under LP Correspondence: Box #23, Folder #5].
• Note from Mr. Morris L. Welson to LP RE: requests assistance from LP in helping him either advance his retirement or find another clerical job, as he has just been terminated from his previous job. Mentions a Mr. Paulson, and Hielte [sp?] as involved in the matter. [Letter of response from LP to Mr. Welson March 24, 1952] [Filed under LP Correspondence: Box #443, Folder #20].

• AHP writes cheque: to: News Cope amount: $3.00 [Filed under LP Biographical: Box #4.021, Folder #3]
• Letter from Dr. Ruth Ellis of the American Association of University Professors to LP RE: thanks LP for his letter of response and for his interest in their regional conference idea. Writes that their conference plans are moving right along with a banquet with Prof. Havinghurst. The meeting should meet its objectives. Asks about the Committee for Peaceful Alternatives that LP mentioned on the phone. [Letter of response from LP to Dr. Ellis March 24, 1952] [Filed under E: Correspondence 1952, Box #112, Folder #18]
• Letter from I.M. Klotz to LP RE: will attend the Protein Substitutes meeting on April 22, 1952. [In Reply to letter from LP March 17, 1952]. [Filed under LP Science: Box 13.004, Folder 4.3].
• Letter from Joseph S. Fruton to LP RE: will attend the Protein Substitutes meeting on April 22, 1952. [In Reply to letter from LP March 17, 1952]. [Filed under LP Science: Box 13.004, Folder 4.3].
• Letter from LP to E.N.C. Andrade, The Royal Institute RE: Includes abstract for planned discourse on protein structure at the Institute.
• Letter from M. Phillips, of the American Association of Scientific Workers, to O. S. Franks of the British Embassy, copy to LP RE: Regrets that the British Government has refused to grant visas or entry into England for the purpose of attending a meeting of the World Federation of Scientific Workers. Reminds him that this ruling applies to LP as well. [Filed under LP Peace: Box 4.009, Folder 9.1]
• Letter from Prof. H. Mark to LP RE: writes about Dr. Klamerth's nature in response to LP's request as LP is considering him for a position at Caltech as a research assistant. Also mentions a supply of polyphenylalanine that Dr. Eirich mentioned he would send to LP. [Letter from LP to Prof. H. Mark March 11, 1952, related letter from Dr. Klamerth to LP March 26, 1952] [Filed under K: Correspondence 1952, Box #200, Folder #17]

• LP Political: Passport Problems, Jan-March 1952: letter from LP to Dr. Louis Levine of the Office of Naval Research RE: writes that he has not received any response about the matter of obtaining a passport to England from the President. He asks Dr. Levin if he could give his and the Office of Naval Research's support for permission to go to England. [Letter of response from Dr. Levin to LP March 28, 1952]. [Filed under LP Biographical: Political Issues: Box 2.002, Folder 2.5]
• LP writes cheque: to: State Printer amount: $.80 [Filed under LP Biographical: Box #4.021, Folder #3]
• Letter from Dave Shoemaker of MIT to LP RE: congratulates LP, Gunnar and Waugh for working out the "162-atom unit." In reference to LP's questions about red phosphorous, writes that a student of his is interested in getting the structure for it. Mentions Clark Stephenson's work on structures. Mentions his discussion with Prof. Paul Beck about sigma and related phases. [Letter from LP to Prof. Shoemaker March 10, 1952, letter from Prof. Shoemaker to LP September 17, 1952] [Filed under LP Correspondence: Box #363, Folder #3: File (Shoemaker, David and Clara 1942-1995)].
• Letter from Executive Secretary of Gates and Crellin Laboratories to Mr. Ware Cattell, Editor of Current Research RE: inquires if any issues of Current Research have been published recently because LP has entered for a subscription but has not received any issues. [Letters from Cattell to LP June 16, 1951, memo from LP to Dr. Schroeder July 9, 1951, letter from LP to Mr. Cattell July 9, 1951] [Filed under C: Correspondence 1952, Box #74, Folder #20]
• Letter from Irvine Page to LP, RE: Page is inviting LP to come and speak to the Cleveland Clinic on his work particularly on proteins and specificity. The Cleveland Clinic would bear all the costs associated with LP speaking. [LP’s reply March 27, 1952] [Filed under LP Speeches: (Speeches by Linus Pauling, 1952), Box 1952s, Folder 1952s.8]
• Letter from John G. Kirkwood, Yale University to LP RE: will attend the Protein Substitutes meeting on April 22, 1952. [In Reply to letter from LP March 17, 1952]. [Filed under LP Science: Box 13.004, Folder 4.3].
• Letter from LP to E.N.C. Andrade, The Royal Institution, RE: enclosing an abstract for LP’s May 16th discourse on the structure of proteins; reminds Andrade that there still is a slight possibility that LP will not be able to give the speech [Letter from LP to Andrade dated March 18, 1952] [Filed under LP Travel: Box #1.001 Folder 1.10]
• Letter from Mr. Belknap of Owens-Illinois Glass Company to LP RE: writes that since LP's letter of March 5, 1952, they have decided not to go ahead with his proposed work. Will have their Director of Research visit Pasadena and review the program at that time. [Letter from LP to Mr. Belknap March 5, 1952, letter from LP to Mr. Belknap March 27, 1952] [Filed under LP Correspondence: Box #299, Folder #7 (Owens-Illinois Glass Company)].
• Letter from Thomas F. Doumani, Program Chairman of the Union Oil Company of California to LP RE: Asks LP if he can tell them of any outstanding visiting scientists at Caltech who would be able to serve as a speaker for their Southern California Section Meetings. [Filed under D: Correspondence 1952, Box #98, Folder #17]

• Letter from E. C. Gilbert of Oregon State College, Dept. of Chemistry to LP RE: requests that LP come to the Pacific Coast A. A. A. S. meeting in June to speak in a symposium about the Structure of Proteins. They invite LP and AHP to visit Corvallis anytime. [Letter of response from LP to E. C. Gilbert March 27, 1952] [Filed under G: Correspondence 1952, Box #140, Folder #16]
• Letter from Ray Pepinsky, Penn State College to LP RE: will attend the Protein Substitutes meeting on April 22, 1952. [In Reply to letter from LP March 17, 1952]. [Filed under LP Science: Box 13.004, Folder 4.3].

• Copy of article in Nature titled "World Federation of Scientific Workers" describes the federation, listing LP as one of the Vice Presidents of the organization. [Filed under LP Peace: Box 4.009, Folder 9.1]
• Letter from M. Phillips, of the American Association of Scientific Workers, to LP RE: M. Phillips could not contact LP before sending the letter on the British ban [sent on March 20, 1952]. Hopes that LP does not mind being mentioned in the letter. [Reply from LP sent March 31, 1952] [Filed under LP Peace: Box 4.009, Folder 9.1]

• AHP writes cheque: to: Pasadena Red Cross amount: $15.00 [Filed under LP Biographical: Box #4.021, Folder #3]
• Letter from John Ferry, University of Wisconsin, to LP RE: will not be able to attend the Protein Substitutes meeting. [In Reply to letter from LP March 17, 1952]. [Filed under LP Science: Box 13.004, Folder 4.3].
• Letter from LP to Dr. Herbert Gutfreund of Yale U. School of Medicine RE: is pleased to hear in his letter that he expects to visit in May. Requests that he let his secretary know his exact plans. Is unable to be in Pasadena to greet him because he will be at a conference of the Royal Society on the structure of proteins. [Note of response from Dr. Gutfreund to LP May 18, 1952] [Filed under G: Correspondence 1952, Box #140, Folder #16]
• Letter from LP to Dr. Richard Lippman RE: LP writes that Dr. Lippman's letter of March 19, 1952 provided him with new information about the situation, which he was happy to have. He still feels that the name of the California Institute of Technology should have been deleted from the leaflet. [Filed under LP Science: Box 14.040, Folder 40.2]
• Letter from LP to Dr. Ruth Ellis of Eastern Washington College of Education RE: Thanks Dr. Ellis for her letter and assures her that she will learn of the Committee on Peaceful Alternatives when Prof. Havinghurst visits her. [Letter from Dr. Ellis to LP March 20, 1952] [Filed under D: Correspondence 1952, Box #112, Folder #18]
• Letter from LP to Emil Smith RE: sorry to hear he can't make it to the Protein Substitutes meeting. [In reply to letter from Smith to LP, March 19, 1952]. [Filed under LP Science: Box 13.004, Folder 4.3].
• Letter from LP to J. A. Beek, Secretary of the Senate, RE: thanks him for the 12 copies of the Ninth Report of the Senate Investigating Committee on Education. Sends a check. Also thanks him for his letter. [Letter from J. A. Beek, Secretary of the Senate to LP March 17, 1952, letter of response from J. A. Beek, Secretary of the Senate to LP March 27, 1952] [Filed under LP Correspondence: Box #378, Folder #6].
• Letter from LP to Leslie E. Sutton of Magdalen College, Oxford RE: writes that he is grateful to Dr. Sutton for informing him of Sidgwick's recent death. [Note from Dr. Leslie Sutton to LP March 16, 1952, letter from Dr. Sutton to LP October 20, 1952] [Filed under LP Correspondence: Box #370, Folder #8 (Sutton, Leslie E.)].
• Letter from LP to Mr. Jack Gardner of Gardener Research Service RE: is afraid that they do not have any information on the subject mentioned in his letter of March 14, 1952 [Note from Mr. Gardner March 14, 1952] [Filed under G: Correspondence 1952, Box #140, Folder #16]
• Letter from LP to Mr. Morris L. Welson RE: in response to Mr. Welson's letter of request, LP writes that there is nothing effective that he can do to remedy his employment situation. Requests further explanation before he can understand Mr. Welson's problem in full. [Note from Mr. Welson to LP March 19, 1952] [Filed under LP Correspondence: Box #443, Folder #20].
• Letter from LP to Prof. Haakon Haraldsen RE: is pleased that Prof. Haraldsen will be joining them to speak April 9th and 10th. If he would like them to reserve accommodations for him during his stay, let them know. [Letter from Haakon Haraldsen to LP March 15, 1952, letter of response from Prof. Haraldsen to LP March 26, 1952] [Filed under H Correspondence: 1952, Box #166, Folder #3]
• Letter from LP to W.T. Astbury, The University in Leeds RE: mentions that J.T. Marsh visited and requests that hotel reservations be made for him and Corey in England. [Related letter from Astbury to LP filed under January 11, 1952].
• Letter from LP to the Rector of Lincoln College, Oxford, England RE: writes to express his sorrow at the death of Nevil Vincent Sidwick. [Filed under L: Correspondence 1952, Box #230, Folder #18]
• Memo from B. H. Sage to R. Stanton, cc: LP RE: Submits the 1952-1953 budget proposal for the Chemical Engineering library. [Filed under: LP Biographical, Box 1.021, Folder 21.3]
• Newsletter titled Medical Freedom discusses issues associated with the firing of Dr. Richard Lippman from the Cedars of Lebanon Hospital in Los Angeles for "political reasons." [Filed under LP Science: Box 14.040, Folder 40.2]

• Letter from Elkan R. Blout to LP RE: will attend the Protein Substitutes meeting on April 22, 1952. [In Reply to letter from LP March 17, 1952]. [Filed under LP Science: Box 13.004, Folder 4.3].
• Letter from LP to Mr. Douglas Brookfield RE: informs that the enclosed letter intended to be delivered to Mr. J. T. Marsh did not reach Caltech until after Mr. Marsh had visited. Therefore, LP is sending back the letter to Mr. Douglas Brookfield. [Letter from Mr. Brookfield to LP March 12, 1952] [Filed under B: Correspondence 1952, Box #37, Folder #19]
• Letter from Maurice Huggins of Eastman Kodak Company to LP RE: apologizes for claiming that the helix that LP and Corey had been advocating was just a refinement of the 10-atom helix which he previously described. Sends a copy of a manuscript to the Editor of the J.A.C.S. about proposed protein structures. [Copy of mentioned communication included] [Letter of response from LP to Dr. Huggins April 2, 1952] [Filed under LP Correspondence: Box #162, Folder #14].
• Letter from W.H. Freeman, W.H. Freeman and Co., to LP . RE: Freeman says that Conway Pierce of Pomona says College Chemistry is the most stimulating textbook he has ever used, though he hopes in the revision LP will make it somewhat simpler. Pierce has also volunteered to do a chemistry workbook for Freeman, and though it won't be in LP's series, Freeman wanted to let him know. [Filed under LP Books, 1950b1.4]
• Note from Jerry Bell to LP RE: is a sophomore at Davenport High School asking for some information about the occupation of academic research chemistry. [LP response April 4, 1952] [Filed under B: Correspondence 1952, Box #37, Folder #20]

• Letter from L. Malatesta to LP, RE: Malatesta outlines his three most recent papers for LP and informs him that reprints of the papers have been sent. [Filed under: LP Manuscripts of Books, Unpb8.2]
• Copy of Letter from Verner Schomaker to Dr. Philip Barkan RE: says that this is a letter in response to Dr. Barkan's letter to LP that LP referred to him regarding punch card calculation of Fourier coefficients. [Letter from Dr. Philip Barkan is in the possession of Verner Schomaker] [Filed under B: Correspondence 1952, Box #37, Folder #19]
• Letter from LP to Mr. William C. Carr RE: Writes that he was very pleased with the speech by Dr. Julian and enjoyed a visit with him as well. Sends back all of the tickets for the speech, none of which he sold. [Letter from Mr. William C. Carr to LP March 17, 1952] [Filed under C: Correspondence 1952, Box #74, Folder #20]
• Letter from Louis Levine to LP RE: would like LP to invite Dr. J.W. Williams of the University of Wisconsin to the meeting on Protein Substitutes. Thanks LP for his visit to Pasadena. [Filed under LP Science: Box 13.004, Folder 4.3].
• Letter from Olaf Klamerth to LP RE: reminds LP that upon his arrival he will visit in Pasadena in the hopes of securing a position with Caltech. Is willing to send references and copies of his publications upon LP's request [return address from the envelope attached] [related memo from "CN" to Beatrice Wulf with no date RE: writes that both he and Haagen-Smith do not have any interest in or funds for supporting Dr. Klamerth. Suggests writing to him to tell him they cannot hire him.] [related letter from Prof. H. Mark to LP March 20, 1952, related note from Mrs. Klamerth to LP October 20, 1952] [Filed under K: Correspondence 1952, Box #200, Folder #17]
• Letter from Paul A. Beck to LP RE: is sending LP a copy of the manuscript of his paper on ternary alloys. Because he made use of 3d electron vacancy numbers originally based on LP's figures, Mr. Beck thought that LP might be interested in the work. Requests that LP send all reprints of his papers on metals. [Letter of response from LP to Mr. Paul A. Beck April 1, 1952] [Filed under B: Correspondence 1952, Box #37, Folder #19]
• Letter from Prof. Haakon Haraldsen to LP RE: thanks LP for offering to take care of accommodations for him and his family during their visit to Pasadena. Asks that LP does make reservations for them, and that he give them the name of the motel at which they will be staying. [Notes in pencil on the bottom of the letter: "couple, 3 children, El Rancho, 2 bedrooms bath kitchen with- radio, television, $15, reservation at Grand Hotel, Clark $8-$11, double bed, twin beds, extra, kitchen, bath, 2 bedrooms with bed $8-$9"] [Letter from LP to Prof. Haraldsen March 24, 1952] [Filed under H Correspondence: 1952, Box #166, Folder #3]
• Material from National Committee to Repeal the McCarran Act [LP is an "Initiator"]. Letter from James V. Bennett, director of United States Dept. of Justice, Bureau of Prisons RE: Outlines the legality of setting up detention camps under the Internal Security Act of 1950, as well as the costs of maintaining them.
• Memo from B. H. Sage to L. A. DuBridge, cc: LP RE: Submits two proposals for grants-in-aid from the American Petroleum Institute. [Filed under: LP Biographical, Box 1.021, Folder 21.3]

• AHP writes cheque: to: Consumers Union amount: $5.00 [Filed under LP Biographical: Box #4.021, Folder #3]
• AHP writes cheque: to: First Unitarian Church amount: $10.00 [Filed under LP Biographical: Box #4.021, Folder #3]
• Letter from B. H. Sage to LP RE: Dr. Sage lists graduate students that have been nominated for research assistantships. Asks LP to consider these nominations. [Filed under: LP Biographical, Box 1.021, Folder 21.3]
• Letter from J. A. Beek, Secretary of the Senate to LP RE: thanks LP for his letter and his check, as well as the invitation to visit the chem laboratory. He did attend chem. classes there at Throop hall. Goes on to discuss his life during and after Caltech. Sends LP a book of his about the California Legislature. [Letter from LP to Mr. Beek, Secretary of the Senate March 24, 1952, letter of response from LP to Mr. Beek, Secretary of the Senate April 2, 1952] [Filed under LP Correspondence: Box #378, Folder #6].
• Letter from LP to Dean Watson of Caltech RE: LP requests a leave of absence for the month of May for both himself and Professor Corey. The trip will be to England to meet with other researchers doing work on protein structure. [Letter from Watson April 1, 1952]. [Filed under: LP Biographical, Box 1.030, Folder 30.8]
• Letter from LP to Dr. Dorothy Hodgkin of Chemical Crystallography Lab, University Museum, Oxford. [Letter from Dr. Hodgkin to LP March 19, 1952, following letter from LP to Dr. Hodgkin April 22, 1952] [Filed under LP Correspondence: Box #159, Folder #12 (The Lalor Foundation; Dorothy Hodgkin)]

  March 27, 1952

  Mrs. Dorothy Hodgkin

  Chemical Crystallography Laboratory

  University Museum

  Oxford

  England

  Dear Dorothy:

  Thanks very much for your letter, with information about David Davies and other matters.

  Helen and I hope to visit Oxford for a short while. We are staying in London for a while after the Royal Society conference, and plan to stay in Cambridge, with the Rothschilds, from May 14 to May 21. I had thought that on May 21 we would transfer to Oxford for a visit, but because of some uncertainty about our plans, I have not yet made any reservation at a hotel. We should be very pleased to accept your invitation to visit you. If it fits with your plans, we should like to come to you on Wednesday, May 21 – probably we shall take the slow train over from Cambridge. We would make only a short visit.

  As to my giving a talk on proteins, I have written Professor Peters that he should not schedule it definitely because of an uncertainty that has arisen. I see no reason, however, why the announcement could not be made after our arrival in London. I should like very much to talk with you about protein structure. I think that our work is moving along well, although not rapidly as I should like. There are many details that I should like to have your advice about.

  With beat regards, I am

  Sincerely yours,

  Linus Pauling:W

• Letter from LP to Dr. E. C. Gilbert of Oregon State College RE: thanks Dr.Gilbert for his letter, however, LP is unable to attend the A. A. A. S. meeting and the regional A.C.S. meeting in June, as he and AHP have planned a trip to Europe at that time. [Letter from Dr. Gilbert to LP March 22, 1952] [Filed under G: Correspondence 1952, Box #140, Folder #16]
• Letter from LP to Dr. Shizuo Fujiwara RE: thanks Dr. Shizuo Fujiwara for sending him his interesting manuscript on the melting points of inorganic compounds. [Letter and manuscript from Dr. Fujiwara to LP February 28, 1952] [Filed under F: Correspondence 1952, Box #128, Folder #17]
• Letter from LP to Henry Allen Moe, Guggenheim Memorial Fellowship RE: Agrees with Moe that Lippman is not suited to receive a grant at this time. [In reply to letter from Moe to LP March 12, 1952]. [Filed under LP Science: Box 14.014, Folder 14.7].
• Letter from LP to Irvine Page, RE: LP thanks Page for the invitation to speak at the Cleveland Clinic, but at the present time LP is not able to accept the invitation. LP will be leaving for Europe and will not be back until June. If June is a good time, then it is possible that LP and AHP could stop by Cleveland for a few days. [Page’s letter March 21, 1952] Page’s reply April 3, 1952] [Filed under LP Speeches: (Speeches by Linus Pauling, 1952), Box 1952s, Folder 1952s.8]
• Letter from LP to J.L. Crammer, Society for Visiting Scientists RE: will be unable to attend the discussion on the Origin of Man due to his current commitment to work on protein structure.
• Letter from LP to Mr. Aram L. Dinguilian RE: Writes in response to Mr. Dinguilian's letter that he is glad that Mr. Dinguilian is considering the structures of proteins that LP and Dr. Corey have discovered in their research. Again emphasizes that it is crucial to back study of protein structures with hard experimental evidence. [Letter from Mr. Dinguilian to LP February 17, 1952] [Filed under D: Correspondence 1952, Box #98, Folder #17]
• Letter from LP to Mr. Belknap of Owens-Illinois Glass Company RE: writes that he is sorry that they have decided not to go ahead with the study of the structural chemistry of compounds of silicon by the electron diffraction method. [Letter from Mr. Belknap to LP March 21, 1952, letter from Mr. Belknap to LP April 2, 1958] [Filed under LP Correspondence: Box #299, Folder #7 (Owens-Illinois Glass Company)].
• Letter from LP to President DuBridge RE: changes recommended to the Caltech Commencement Ceremony. More time be taken and individual's names be read off separately. [Filed under: LP Biographical, Box 1.030, Folder 30.3]
• Letter from Mrs. Ethel B. Socolar to LP RE: requests that LP speak at the public meeting at the University of Chicago for the Faculty-Graduate Committee for Peace. Requests that he speak on a subject focusing on American foreign policy today. [Letter of response from LP to Mrs. Socolar April 2, 1952] [Filed under LP Correspondence: Box #378, Folder #6]
• Letter from Richard Lippman, M.D. to LP RE: Clarifies the chronology of the pamphlets that used LP's and Caltech's name in an unauthorized fashion. Also ensures that his name will not be used in the future. Updates LP on his current inability to perform research. [In reply to letter from LP to Lippman March 15, 1952, Reply from LP to Lippman April 1, 1952]. [Filed under LP Correspondence: Box #217, Folder #5 (Lippman)].
• Letter from Robert S. Reiss to LP RE: writes on behalf of his brother, Paul Naor who is studying for his Ph D at U of Birmingham in England. Wants the opportunity to study under LP in his department. Goes on to write a short curriculum vitae. [Letter of response from LP to Dr. Reiss April 1, 1953] [Filed under N: Correspondence 1952, Box #287, Folder #19]
• Telegram from LP to J.B. Culbertson, RE: LP will speak at Columbia on Wednesday the 16th in the evening. LP would like advice on how to travel to Mount Vernon. [Culbertson’s reply March 28, 1952] [Filed under LP Speeches: (Speeches by Linus Pauling, 1952), Box 1952s.7]

• AHP writes cheque: to: Market Basket amount: $24.05 [Filed under LP Biographical: Box #4.021, Folder #3]
• LP Political: Passport Problems, Jan-March 1952: Letter from LP to Professor Roger Adams of the U. of Illinois RE: LP sends a copy of his letter to President Truman regarding LP's pursuit in obtaining a passport. Also includes a copy of his letter to Bronk. Asks for advice and help from Prof. Adams as the Foreign Secretary of the National Academy of Sciences. [related letter from LP to Bronk March 28, 1952]. [Filed under LP Biographical: Political Issues: Box 2.002, Folder 2.5]
• LP Political: Passport Problems, Jan-March 1952: letter from LP to Dr. Detlev W. Bronk, President of the National Academy of Sciences. [related letter from LP to Prof. Roger Adams March 28, 1952]. [Filed under LP Biographical: Political Issues: Box 2.002, Folder 2.5]

  March 28, 1952

  Dr. Detlev W. Bronk, President

  National Academy of Science

  2101 Constitution Avenue

  Washington, D.C.

  Dear Det:

  May I ask you to take action, as President of the National Academy of Sciences, about the matter of the issuance of a passport to me, in the following way - that is, if it is not too great an inconvenience for you.

  I should like to know whether the President is going to answer my letter of February 29, 1952, to him, in order that I may know what to do about the Royal Society of London. I should also like to have your advice, and possibly that of Roger Adams, the Foreign Secretary of the National Academy of Sciences, as to what I should do. You remember that the principal reason for my trip to England is to attend the discussion conference of the Royal Society on the structure of proteins, to be held in London on May 1. In fact, the date was changed to May 1 in order to permit my attendance. It is my understanding that the protein structures that Professor Corey and I have suggested are to be the principal subject of discussion at the meeting. Because of these circumstances, and because I am a Foreign Member of the Royal Society (as you are also), I feel that it is especially important that I be present at the meeting. It is for this reason that I did not notify the Royal Society when I received the letter from Mrs. Shipley saying that a passport was not being issued to me, but instead wrote to the President, asking that the decision be reconsidered.

  I may say that I do not plan to engage in any activities other than purely scientific ones on this trip. I might, of course, raise the question as to whether I should not have the privilege of discussing social and political questions with other people; but the fact is that I do not propose to do so. My plans are as follows. My wife and I propose to fly from New York on April 27 by B.O.A.C. arriving in London on April 28. The Society for Visiting Scientists has arranged to hold a reception for my colleague Professor Robert B. Corey and me, at 5 Old Burlington Street, on Wednesday, April 30. I may point out that the Honorary Presidents of the Society for Visiting Scientists are the President of the Royal Society and the Chairman of the British Council, and that Sir Harold Spencer Jones is the President and Chairman this year - I do not think there could be any objection to my attending this reception. Then I plan to take part in the royal Society Conference on Proteins on May 1. I am scheduled also to give a Friday Evening Discourse at the Royal Institution of Great Britain, on Friday, May 16. I have been invited to give a talk on the structure of proteins at Oxford University, and it is not unlikely that I would give a similar talk at Cambridge University, although I have not been invited to do so. I propose to stay for one week in Cambridge, from May 14, to May 21, with Lord Rothschild. At present my wife and I plan to stay in London until May 14, to spend then a week or two in Oxford, and the remaining time at Leeds, where much work on proteins is being carried out, and perhaps at other British universities. Our only activities, aside from sightseeing, would be to discuss scientific questions with people in these places.

  I hope very much that it will not be necessary for me to inform the Royal Society that I cannot be present at the special discussion meeting on the structure of proteins on May 1. It is for this reason that I ask if you could make inquiry at the White House about the fate of my letter. If it turns out that the passport is not going to be issued to me, I ask that you advise me as to the best way to break the news to the Royal Society.

  Let me say that I appreciate deeply your efforts in my behalf.

  Sincerely yours,

  Linus Pauling:W

• LP Political: Passport Problems, Jan-March 1952: letter from Louis Levine of the Department of the Navy Office of Naval Research to LP RE: writes to LP in response to their telephone conversation about LP's problem of attempting to obtain a reversal of the State Department's decision against issuing him a passport. Writes that he is doing all that he can to help and that he has also spoken to Dr. Koepfli about the matter. [Letter from LP to Dr. Louis Levine March 21, 1952]. [Filed under LP Biographical: Political Issues: Box 2.002, Folder 2.5]
• Letter from Beatrice Wulf to G.H. Vineyard, RE: Wulf outlines LP travel plans for his trip to the University of Missouri. Wulf notes that there are some difficulties with the rail system and asks for Vineyard’s advice on this matter. Wulf requests that Vineyard make hotel reservations for LP and AHP. [Vineyard’s reply April 1, 1952] [Filed under LP Speeches: (Speeches by Linus Pauling, 1952), Box 1952s, Folder 1952s.6]
• Letter from Dr. Jurg Waser to LP RE: requests that LP give a talk explaining the recent developments in protein structure at Rice Institute. [Letter of response from LP to Dr. Weser April 2, 1952].
• Letter from George Guthrie, Jr., Physical Chemist at the United States Department of the Interior, Bureau of Mines, to LP RE: follows up on LP's visit to the Bureau, asks a few chemistry questions regarding the thermodynamic properties for elementary sulfur. Questions such as : "what is the barrier to internal rotation about the sulfur-sulfur bond?," and "what is the energy needed to open the ring in S8?" [enclosure included giving the Thermochemical Data for the Equilibria in Sulfur Preliminary Correlation] [Letter of response from LP April 1, 1952] [Filed under G: Correspondence 1952, Box #140, Folder #16]
• Letter from J.B. Culbertson to LP, RE: There are no trains that are running between Columbia and Mount Vernon in the times that LP needs. Culbertson will arrange to have a college car sent to pick up LP at Columbia and take him to Mount Vernon. The college will provide accommodations while LP is visiting and Culbertson would like to know if AHP is still planning to attend as well. Culbertson would like to know the title of the lecture LP plans to give. [LP’s telegram March 27, 1952] [LP’s reply April 2, 1952] [Filed under LP Speeches: (Speeches by Linus Pauling, 1952), Box 1952s, Folder 1952s.7]
• Letter from Linus Pauling Jr. to LP and AHP RE: Personal letter detailing his move to Hawaii and birthday events. [Filed under LP Science: Box 2.013, Folder 13.62]
• Letter from Miron Morrill to LP, RE: Morrill is sure that Culbertson is writing to LP today to figure out transportation issues. Morrill is wiring LP’s public relations office to ask for biographical materials and a photograph of LP. Morrill also would like to know where LP plans to go after Cornell so that arrangements can be made. [LP’s reply April 1, 1952] [Filed under LP Speeches: (Speeches by Linus Pauling, 1952), Box 1952s, Folder 1952s.7]
• Letter from Mr. Ben May to LP RE: Sends an article on the Spontaneous Healing of Sickle Cell Anemia Ulcer in Pregnancy. [Letter from LP to Mr. Ben May March 10, 1952, letter from LP to Mr. Ben May April 2, 1952] [Filed under LP Correspondence: Box #244, Folder #5 (May, Ben)].
• Letter from Raymond M. Fuoss to LP RE: won't be able to attend the Protein Substitutes meeting on April 22, 1952. [Filed under LP Science: Box 13.004, Folder 4.3].
• Letter from W. N. Lacey to C. G. Niemann, cc: Mrs. B. Wulf [LP] RE: Lacey makes recommendations for tuition scholarships and graduate teaching assistantships. [Filed under: LP Biographical, Box 1.018, Folder 18.2]
• Note from Dr. M. Simonetta to LP RE: sends back LP's paper "Alkali Halides..." and offers to do some calculations on the subject or on alkali halides in gas phase. Brings up a matter about adding a note to the end of the "J.C.Ph" paper. Also sends a reprint. Mentions Prof. M. G. Evans and the possibility of LP visiting Italy. [Letter of response from LP to Dr. M. Simonetta April 2, 1952] [Filed under LP Correspondence: Box #378, Folder #6].
• Telegram from J.B. Culbertson to LP, RE: “Trains impossible. Will meeting you in Columbia with college car." [Filed under LP Speeches: (Speeches by Linus Pauling, 1952), Box 1952s, Folder 1952s.7]

• AHP writes cheque: to: Cheese House amount: $5.00 [Filed under LP Biographical: Box #4.021, Folder #3]
• AHP writes cheque: to: Walter Fritts amount: $48.00 [Filed under LP Biographical: Box #4.021, Folder #3]
• LP Political: Passport Problems, Jan-March 1952: Copy of an excerpt from the British journal Nature, March 29, 1952, Vol. 169, p.526. Discusses the makeup of the World Federation of Scientific Workers. Mentions that due to an inability of its foreign members to receive entrance into Great Britain, a proposed meeting to be held March 22 and 23 of 1952 has been abandoned. [Filed under LP Biographical: Political Issues: Box 2.002, Folder 2.5]
• Memo from J. E. Leonard and Harry L. Yakel to LP. [LP Science: Box 6.002, Folder 2.5]

  TO PROFESSOR LINUS PAULING

  FROM J. E. LEONARD

  DATE: 3-29-52

  SUBJECT The X-ray examination of muscle samples, numbers 1-176 from the mussel Mytilus Edulis and the rock scallop Rhinites.

  1. Mytilus Edulis {Samples 1-69)

  All of the samples yielded the characteristic α-keratin type diffraction pattern, with a strong equatorial spot at 9-10 A. and a sharp, well defined meridional arc at 5 A. Some samples appeared to be better oriented than others, but no additional details, indicative of higher crystallinity, were observed in the patterns.

  Long spacings on the meridian of 19.5, 22.3, 24.4, 28.1, 31.9, 37.0, 48.4, 57.9, and 73.3 Å were observed on sample number 37 using the 15 cm. (flat film) vacuum camera, and the meridional spacing 1.52 + 0.01 Å was measured using the 2.865 cm. (Weissenberg) cylindrical camera.

  2. Rhinites (Samples 70-176)

  These samples displayed the sense α-keratin type small spacing diffraction pattern as was observed on those of Mytilus Edulis above. The orientation of the fibers was, in general, poorer than that of the former samples, and again no indication of higher crystallinity was obtained. No attempt was made to observe the long spacings on Rhinites muscle.

  John E. Leonard

• Reprint of article "Surgery of the Spleen," by Sir Lionel Whitney. Original article printed March 29, 1952 in The Lancet. [Filed under LP Science: Box 6.012, Folder 12.3]

• Note from John S. McKinley McKee RE: writes about the research that he is working on currently including work with the interaction of long chain compounds with metal ions. Also mentions that he sent another note a while back enquiring about a possible fellowship at Caltech. Wonders if LP got that note. [Note from Dr. McKinley McKee January 12, 1952, letter of response from LP to Dr. McKinley McKee April 8, 1952] [Filed under M: Correspondence 1952, Box #256, Folder #3]
• Research notes on ferromagnetism [7 pages]. [Filed under LP Science: Box 5.003, Folder 3.14]

• LP Political: Passport Problems, Jan-March 1952: Letter from William D. Hassett of the White House, Secretary to the President, to LP RE: acknowledges LP's letter of request for a passport and says that he has referred LP's request to the Department of State. [Letter from LP to The President February 29, 1952]. [Filed under LP Biographical: Political Issues: Box 2.002, Folder 2.5]
• LP writes cheque: to: National Committee to Repeal the McCarran Act amount: $10.00 [Filed under LP Biographical: Box #4.021, Folder #3]
• Letter from Dr. Fankuchen to LP RE: requests on behalf of the American Association of Scientific Workers that LP contribute an article based in his field to the publication of a short book outlining the part that science can play in the arts of peace. [outline of the publication included] [previous letter from LP to Dr. Fankuchen March 13, 1952, following letter from LP to Dr. Fankuchen April 15, 1952] [Filed under LP Correspondence: Box #117.4].
• Letter from Esther Simpson to LP, RE: The Society for Visiting Scientists understand that it would be awkward for LP to take part in the discussion meeting that they had planned and are instead simply looking forward to having LP at their reception on April 30th. [Filed under LP Speeches: (Speeches by Linus Pauling, 1952), Box 1952s, Folder 1952s.10]
• Letter from Hans Neurath, University of Washington, to LP RE: wont be able to attend the Protein Substitutes meeting on April 22, 1952. [Filed under LP Science: Box 13.004, Folder 4.3].
• Letter from LP to Dr. Richard W. Lawton RE: thanks Dr. Lawton for his letter of March 19, 1952. They are making a study of the literature on elastic tissue, and considering doing effective work on that material. Also mentions some advancements in their work with the interpretation of the x-ray pattern of collagen in terms of the three-chain helical structure that he and Prof. Corey proposed. [Letter from Dr. Lawton to LP March 19, 1952] [Filed under L: Correspondence 1952, Box #230, Folder #18]
• Letter from LP to Joe Capsin RE: was glad to receive his letter of March 25, 1952. Says that things are going well with his research on proteins. Plans to go to England in May. Mentions that LP Jr. will be interning in Honolulu. Sends a photograph. [Sends along a Note RE: a letter of praise of LP's book College Chemistry. Also discusses a public hearing that he attended.]. [Sends a newspaper clipping titled, "'McCarthyism' as Danger Compared With Communism."] [Letter of response from Joe Capsin to LP April 20, 1952] [Filed under LP Correspondence: Box #57, Folder #9].
• Letter from LP to M. Phillips of the American Association of Scientific Workers RE: Replies to the March 23, 1952 letter by M. Phillips by apologizing to him for not getting an answer written in response to an earlier query. Informs Phillips that he does not wish to be a candidate for Vice President of the World Federation of Scientific Workers. [Filed under LP Peace: Box 4.009, Folder 9.1]
• Letter from LP to Mr. Herbert S. Bailey, Jr. RE: Is not currently considering writing a book on molecular structure due to currently insufficient knowledge on the structure of proteins. LP is also currently tied up by the revision of a previous book. [Letter from Mr. Bailey, Jr. to LP March 11, 1952] [Filed under: LP Correspondence: Box #312, Folder #17].
• Letter from LP to Prof. H.F. Mark of the Polytechnic Institute of Brooklyn RE: thanks Prof. Mark for his help with the polypeptide matter. Doesn't need him to find a sample of polyglycine. [Letter from Prof. Mark to LP March 10, 1952, letter from Prof. Mark to LP October 28, 1952] [Filed under LP Correspondence: Box #244, Folder #1 (Mark, Herman)].
• Letter from LP to Prof. Leonora N. Bilger RE: congratulates Prof. L. Bilger on her 25-year service award and speaks of his own. Says that Linus Jr. has received appointment as intern at the hospital in Honolulu. [previous letter from LP to Prof. L. Bilger February 8, 1952, following letter from LP to Prof. L. Bilger June 26, 1952]
• Letter from LP to W.H. Freeman, W.H. Freeman and Co., RE: LP says he is pleased that Conway Pierce is going to do a chemistry workbook. He is glad to have Pierce's suggestion about the problems, but judges there is nothing to do until a second edition comes out. [Filed under LP Books, 1950b1.4]
• Letter from, Frank N. Getman of the The Wm. S. Merrell Co. to Mr. L. A. DuBridge cc: LP RE: writes that he is glad to learn of the possibility of a research project that his company could support at their institution. They will have one of their representatives go to visit with him as soon as they can to discuss the details of their research program. [Filed under M: Correspondence 1952, Box #256, Folder #3]
• Note from Dr. M. Perutz to LP RE: asks LP to send him a reprint of his work on Heme-Heme interactions in hemoglobin which he and St. George worked on. Looks forward to seeing LP in the next month. Goes on to discuss some of his own hemoglobin work. [Letter from LP to Dr. Perutz May 15, 1952] [Filed under LP Correspondence: Box #307, Folder #1 file: (Perutz, M. 1946-1960)].