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• Crystallographic photos of a scallop muscle (Mytilus edulis) and a mollusk muscle. [Filed under LP Science: Box 6.002, Folder 2.6]
• Itinerary for LP and AHP for April and May 1952. [Filed under LP Speeches: (Speeches by Linus Pauling, 1952), Box 1952s, Folder 1952s.6]
• LP Political: Passport Problems, April 1952: Copy of LP's European travel Itinerary, April 15 through June 8. [Filed under LP Biographical: Political Issues: Box 2.002, Folder 2.6]
• LP Political: Passport Problems, April 1952: Copy of a statement written by LP entitled "The Department of State and the Structure of Proteins" discussing LP's difficulties in obtaining a passport for travel to Europe. Writes the statement in response to a request made by the Chairman of the Editorial Board of the American Association for the Advancement of Science. Includes copies of correspondence to and from Mrs. RB Shipley of the Passport Division of the Department of State, The President, The Secretary to the President William D. Hassett, President of the Royal Society Sir Robert Robinson, and the Secretary of State. [Filed under LP Biographical: Political Issues: Box 2.002, Folder 2.6]
• Notes [handwritten on yellow paper]: travel dates and costs for the month of April [Filed under LP Travel: Box #1.001, Folder 1.10]
• Pauling Scrapbook: Popular Mechanics Magazine article "Molecules Tailored to Order" by Ewart Thomas. [pictures of LP] [six pages] [Filed under LP Biographical: Box 6.006, Folder 6.17].
• Pauling Scrapbook: The New Outlook article by LP entitled "Science in the Kindergarten." RE: discusses the value of educating the average citizen in the sciences so that they may participate more effectively in a modern democracy. [Filed under LP Biographical: Box 6.006, Folder 6.24]
• Reprint of Journal of Hematology article "Genetic Aspects of Sickle Cell Anemia and Microdrepanocytic Disease." [Filed under LP Science: Box 6.012, Folder 12.3]
• Reprint of article "Studies on Abnormal Hemoglobins. IV. Persistence of Fetal Hemoglobins in the Erythrocytes of Normal Children." Original published in Pediatrics, Vol. 9 , No. 4, April 1952. [Filed under LP Science: Box 6.012, Folder 12.3]
• Travelers cheque record: [date unknown] expenses in Paris and the Queen Mary [Filed under LP Travel: Box #1.001 Folder 1.10]

• AHP writes cheque: to: Sue Perry, amount: $14.00 [Filed under LP Biographical: Box #4.021, Folder #3]
• LP Political: Passport Problems, April 1952: copy of a letter from Robert J. Havinghurst to the members of the National Committee for Peaceful Alternatives RE: asks that they comment on the enclosed statements on Germany in light of recent Russian and Western notes, on Indo-China policy and on a letter replying to a letter from Frederic Joliot-Curie. [Filed under LP Biographical: Political Issues: Box 2.002, Folder 2.6]
• LP Political: Passport Problems, April 1952: letter from J.G. Crowther, Secretary General to The Members of the Executive Council and to Affiliated Organizations RE: encloses a copy of an Appeal from Professor F. Joliot-Curie concerning Cultural Anniversaries. [Filed under LP Biographical: Political Issues: Box 2.002, Folder 2.6]
• LP Political: Passport Problems, April 1952: letter from Roger Adams, Head of the Chemistry Dept of the University of Illinois to LP RE: acknowledges LP's letter of March 28, 1952 with copies of the letters to President Truman and Detlev Bronk. Hopes that LP will be able to obtain a passport. Has written to Bronk himself. [Filed under LP Biographical: Political Issues: Box 2.002, Folder 2.6]
• LP writes cheque: to: Peter J. Pauling amount: $15.00 [Filed under LP Biographical: Box #4.021, Folder #3]
• Letter from G.H. Vineyard to Beatrice Wulf, RE: Vineyard is sorry that rail system is giving LP’s plans some troubles. Vineyard offers some suggestions that may help. Vineyard also asks if LP can address the departmental seminar on the date that he is at the University of Missouri. Vineyard thinks that the staff and faculty would be interested to hear about LP’s current research. [Wulf’s letter March 28, 1952] [Wulf’s reply April 4, 1952] [Filed under LP Speeches: (Speeches by Linus Pauling, 1952), Box 1952s, Folder 1952s.6]
• Letter from LP to Dr. George Guthrie, Jr. RE: responds to Dr. Guthrie's questions in his previous letter regarding Sulfur. Cannot answer most of the questions because he is currently getting ready for a trip to Europe. Thus, he does not attempt to answer all of Dr. Guthrie's questions in this letter. [Letter from Dr. George Guthrie to LP March 28, 1952] [Filed under G: Correspondence 1952, Box #140, Folder #16]
• Letter from LP to Dr. Richard Lippman, RE: Discusses the pamphlet issue and goes on to discuss Lippman's research funding for the future. [Filed under LP Correspondence: Box #217, Folder #5 (Lippman)].
• Letter from LP to Dr. Robert S. Reiss RE: writes in response to Dr. Reiss' letter about his brother, Paul Naor who desires to study under LP while pursuing research on the structure of metals and his Ph D. Writes that at the present time they do not have any openings, though they are currently trying to gain additional support for their work in alloys. [Letter from Dr. Reiss to LP March 27, 1953, related memo from LP to G. Bergman April 1, 1952] [Filed under N: Correspondence 1952, Box #287, Folder #19]
• Letter from LP to J.H. Williams, University of Wisconsin 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 Miron Morrill, RE: LP regrets that his trip to Cornell will be so short. LP and AHP are planning to stay overnight at Cornell and then leave from Cedar Rapids in the morning. LP notes that the title of his address will be “Chemistry in Relation to Medicine.” LP’s public relations office is sending biographical materials and a photograph. [Morrill’s letter March 28, 1952] [Filed under LP Speeches: (Speeches by Linus Pauling, 1952), Box 1952s, Folder 1952s.7]
• Letter from LP to Mr. Reese H. Taylor of Union Oil Co. RE: thanks him for the copy of the book "How to Keep Our Liberty," by Raymond Moley. [Filed under LP Correspondence: Box #410, Folder #17].
• Letter from LP to Prof. Paul A. Beck RE: tells Prof. Beck that he has been thinking about the manuscript that was sent to him and informs Prof. Beck that he does not understand it. Goes on to describe some discrepancies that he found in the manuscript in regards to his own papers. Says that he is sending reprints of their metal papers that are still available on April 18, 1952 [Letter from Prof. Paul Beck to LP March 26, 1952, follow up letter from Prof. Paul Beck April 8, 1952] [Filed under B: Correspondence 1952, Box #37, Folder #19]
• Letter from R. T. Wedding RE: requests that LP give him some references for literature on the subject of high energy phosphate bonds, as he is preparing a talk for his institution's Biochemistry Seminar. [Letter of response from LP to Dr. Wedding April 3, 1952] [Filed under LP Correspondence: Box #443, Folder #20].
• Memo from E.C. Watson to LP RE: Grants LP and Dr. Corey permission to take a leave of absence in May to travel to England. [Letter from LP to Watson March 27, 1952]. [Filed under: LP Biographical, Box 1.030, Folder 30.8]
• Memo from LP to G. Bergman RE: writes that he has received a letter from Dr. Reiss stating that his brother Mr. Naor would like to come to Caltech to work on metals. Suggests that they consider appointing him if they get additional funds. [related letter from LP to Dr. Robert S. Reiss April 1, 1952].
• United States Patent Office, Patent Description for Patent 2,591,133. [LP Safe: Box 2.021, Folder 21.14]

• LP writes cheque: to: Chet's amount: $63.90 [Filed under LP Biographical: Box #4.021, Folder #3]
• Letter from Dr. R. Byron Bird to LP RE: encloses an itemized expense account in the letter from his recent visit to Caltech. Plans to make his final decision regarding his next year's work before Easter. Would appreciate word from Caltech before then. Sends his regards to several folks at Caltech. [a "P.S." in German is included at the bottom of the letter.] [Letter from LP to Dr. Bird April 4, 1952] [Filed under B: Correspondence 1952, Box #37, Folder #19].
• Letter from J.H. Highberger, United Shoe Machinery Corporation to LP RE: will not be able to attend the April 22, 1952 meeting of the Protein Substitutes Group, but Dr. Wiederhorn will take his place. [Filed under LP Science: Box 13.004, Folder 4.3].
• Letter from LP to C.H. Bamford, RE: LP writes to discuss, in depth, research on the structure of synthetic polypeptides. [Filed under B: Correspondence 1952, Box #37, Folder #20]
• Letter from LP to Dr. Jurg Waser RE: is not able to accept his invitation to speak on protein structure at Rice Institute as his schedule is full. [Letter from Dr. Waser to LP March 28, 1952].
• Letter from LP to Dr. M. L. Huggins. [Letter from Dr. Huggins to LP March 25, 1952, reprint of Maurice Huggins General 1953] [Filed under LP Correspondence: Box #162, Folder #14].

  April 2, 1952

  Dear Maury:

  I thank you for sending me the manuscript of your Letter to the Editor of the J.A.C.S.

  Let me say that Dr. Corey and I both feel that it would not be proper for you to publish this letter, nor for anyone to publish letters or papers about proposed protein structures, at the present time, without a precise description of the proposed structure. It is true that up to about a year and a half ago all proposed protein structures were vague, as is the 11-atom ring helix that you mention in your letter. However, a year and a half ago Bragg, Kendrew, and Perutz published a paper in which they discussed a number of proposed structures and gave coordinates for the atoms, to 0.1 A. Then Dr. Corey and I published our papers, in which, for every structure that we discussed, we gave tables of coordinates of the atoms, including the beta carbon atoms of the side chains to 0.01 A. (There is, of course, some probable error to our predicted coordinates, but at any rate we described the structures as precisely as we could, and in general we have confidence in our predictions to within a few hundredths of an Angstrom.)

  These precedents show that it is possible for investigators to describe the structures that they are interested in with sufficient precision to permit them to be reproduced by other people. I repeat that we feel strongly that the time has now passed when qualitative discussions of protein structure were acceptable.

  It is our opinion that if you want serious consideration to be given to the 11-atom helical structure you must describe it by communicating the atomic coordinates - I think that they should be communicated to 0.01 A, together, if you wish, with a statement of the uncertainty that you associate with your prediction. Once that you have stated what the structure is that you favor, it can be considered by other people.

  There is one place in your letter that seems to me to give the reader a wrong impression - I may say that you can hardly be blamed for this, since Bamford and Hanby, whom you are quoting, also wrote their letter to the Editor of Nature in such a way as to give the reader the wrong impression. The sentence in the middle of page 2 is written in such a way as to suggest that Dr. Corey and I are responsible for the error (not a very large one) in the cell dimensions that we assigned to the synthetic polypeptides, and the letter by Bamford and Hanby gave the reader that impression. However, the cell dimensions that we reported were based on the dimensions reported by Bamford, Hanby, and Happey in the Proc. Roy. Soc. (1951), and the errors in our cell dimensions simply reflect errors in the values that they gave. Then on remeasurement of their films (or perhaps on measurement of new ones) they found (as has also a man working in our laboratories) that the fiber-axis lengths reported by them were too long, by a few percent, and should be reduced to about 5.4 A per turn of the helix. I do not think that there is any need for you to follow Bamford and Hanby in this effort to misinform the reader; moreover, for your purpose all that you need to do is to state that the fiber-axis length per turn is 5.4 A, with the reference (your reference 4) - or you might want to say that Bamford and Hanby had corrected the values originally given by Bamford, Hanby, and Happey for the fiber-axis length, which we have interpreted as the length per turn of the helix.

  I might also point out that your letter does not describe the proposed 11-atom structure even to the extent of saying whether it involves a planar or a non-planar amide group. Bamford and his collaborators, in suggesting what I assume from your letter to be the same structure, indicated that it involves non-planar amide groups, as did also the Bragg, Kendrew, and Perutz prototype. They do not say, however, by how great an amount the amide group must deviate from non-planarity, nor what the nature of this distortion is. Dr. Corey and I feel, of course, that they should be criticized for proposing a structure at the present time without stating precisely what structure they are talking about.

  As to your error in saying in New York that our 3.7-residue helix was identical topologically with a structure that you had discussed, I was surprised, because I had not remembered your having discussed just this structure, but I have not, at any time since then, checked the matter, because it was clear that in any case the similarity was only topological, and not metrical. I remember that Professor Corey and I felt, when we published our letter in the J.A.C.S. in 1950, that in your proposal of helical structures in 1943 you had come sufficiently close, in the 3-residue helix, to our structures to justify a friendly mention of your work, and for this reason we put in a footnote saying that "a 3-residue spiral described by Huggins is similar to ours, but differs from it in essential structural details."

  I hope that you will let me know if you decide to withdraw your communication to the Editor of the J.A.C.S., or to make changes in it.

  Sincerely yours,

  Linus Pauling

• Letter from LP to Dr. M. Simonetta RE: thanks him for his letter. Writes that he has not done more work on the alkali halides in the gas phase due to his current work with proteins. Goes on to discuss the phosphorus molecule that Verner mentioned to him. Does not plan on visiting Italy. [Note from Dr. M. Simonetta to LP March 28, 1952] [Filed under LP Correspondence: Box #378, Folder #6].
• Letter from LP to J.B. Culbertson, RE: LP notes that the title for his talk is to be “Chemistry in Relation to Medicine.” AHP will accompany LP on this trip. [Culbertson’s letter March 28, 1952] [Culbertson’s reply April 7, 1952] [Filed under LP Speeches: (Speeches by Linus Pauling, 1952), Box 1952s, Folder 1952s.7]
• Letter from LP to Mr. Ben May RE: thanks Mr. May for the article he sent on sickle cell anemia. Mentions his work on protein structure. Writes that he is planning a trip to England with Dr. Corey to attend the Royal Society conference. [Letter from Mr. Ben May to LP March 28, 1952, letter from Mr. May to LP May 2, 1952] [Filed under LP Correspondence: Box #244, Folder #5 (May, Ben)].
• Letter from LP to Mr. J. A. Beek, Secretary of the Senate RE: thanks him for his letter and the book "The California Legislature." Writes that he is preparing for a trip to England where there will be held a conference on the structure of proteins. [Letter from Mr. Beek, Secretary of the Senate to LP March 27, 1952]
• Letter from LP to Mrs. Ethel B. Socolar RE: gives thanks for the invitation to speak for the Faculty-Graduate Committee for Peace at the University of Chicago. However, he is unable to accept as he is planning a trip to Europe. [Letter form Mrs. Socolar to LP March 27, 1952] [Filed under LP Correspondence: Box #378, Folder #6].
• Letter from LP to Mrs. Ethel B. Socolar RE: gives thanks for the invitation to speak for the Faculty-Graduate Committee for Peace at the University of Chicago. However, he is unable to accept as he is planning a trip to Europe. [Letter form Mrs. Socolar to LP March 27, 1952] [Filed under LP Correspondence: Box #378, Folder #6].
• Letter from LP to Prof. T. E. King of Dept. of Chem. at Oregon State University RE: writes that he is sorry but it is not possible for him to go to Corvallis at the time of the June meeting. None of the other men in their division who are interested in protein chemistry are going either. [Note in pencil in upper right: "letter sent to Dan Campbell."] [Filed under K: Correspondence 1952, Box #200, Folder #17]

• LP writes cheque: to: Joseph W. Kennedy, Sec. Treas. amount: $2.00 [Filed under LP Biographical: Box #4.021, Folder #3]
• Letter from Irvine Page to LP, RE: Page is delighted to hear that LP may be able to come to Cleveland some time in June. Page will try to arrange some dates that will be satisfactory for both LP and the Cleveland Clinic. [LP’s letter March 27, 1952] [LP’s reply April 8, 1952] [Filed under LP Speeches: (Speeches by Linus Pauling, 1952), Box 1952s, Folder 1952s.8]
• Letter from Irving Rubin, Managing editor of American Druggist RE: request for photographs and images concerning the "rearrangement of the atomic structure of viruses," for use in a future article. [LP reply April 15, 1952] [Filed under A: Correspondence 1952, Box #12.18]
• Letter from LP to Dr. E.W. Hughes of the Chemistry Department of the University of Leeds 2, England RE: Mentions Caltech graduate student "Yakel"'s thesis work on poly-gamma-methyl-L-glutamate. Also mentions his intention to attend the "May 1 conference on proteins." Mentions some of his and Corey's new material on the subject. Mentions that he has been denied a passport by the State Department and asks, if he cannot attend the conference, that Dr. Hughes assist Corey in his discussion of their work. [following letter from LP to Dr. E. W. Hughes April 22, 1952] [Filed under LP Correspondence: Box #163, Folder #1].
• Letter from LP to Dr. T. Wedding RE: gives Dr. Wedding some suggestions on what literature to seek for his research on high energy phosphate bonds. [Letter from Dr. Wedding to LP April 1, 1952] [Filed under LP Correspondence: Box #443, Folder #20].
• Letter from Lloyd E. Harris, Lt Colonel to LP RE: writes that General William M. Creasy wrote a letter to LP about a visit by Lt. Harris with members of LP's staff. He will arrive in Pasadena around April 28, 1952. [Letter of reply from LP to Lt. Harris April 14, 1952] [Filed under H Correspondence: 1952, Box #166, Folder #3]
• Letter from N.A.M. MacKenzie to LP, RE: MacKenzie apologizes that the check for LP was not properly enclosed in his letter of February 27th. MacKenzie now enclosed LP’s check for $400. [LP’s letter March 17, 1952] [Filed under LP Speeches: (Speeches by Linus Pauling, 1952), Box 1952s, Folder 1952s.5]

• AHP writes cheque: to: Frances Chapman amount: $6.00 [Filed under LP Biographical: Box #4.021, Folder #3]
• LP writes a report entitled, A Second Report on Silk Fibroin, which adjusts his previous report based on the intensity calculations of Dr. Marsh. [Related report February 25, 1952]. [Filed under LP Manuscripts and Typescripts: 1952a.7].
• Letter from Beatrice Wulf to George Vineyard, RE: LP wants to thank Vineyard for the invitation to speak at the University of Missouri. [Vineyard’s letter April 1, 1952] [Filed under LP Speeches: (Speeches by Linus Pauling, 1952), Box 1952s, Folder 1952s.6]
• Letter from G. L. Clark to LP RE: Requests that LP participate in a national meeting of the American Chemical Society in September. Puts emphasis on LP's work on the present status of diffraction analysis. [Letter of reply from LP to Prof. Clark April 8, 1952] [Filed under LP Correspondence: Box #66, Folder #2].
• Letter from Henry Quastler, University of Illinois, to LP RE: thanks him for the invitation to attend the Protein Substitutes meeting. [Filed under LP Science: Box 13.004, Folder 4.3].
• Letter from LP to Dr. R. Byron Bird RE: apologizes for not writing sooner. Finds that the department is no longer able to hire a new man in theoretical chemistry, as they have already hired one of their own Ph. D.'s in applied chemistry. Requests that Dr. Bird send an expense list from his last visit to Caltech. [Letter from Dr. Bird April 12, 1952, follow up letter from LP to Dr. Bird April 8, 1952] [Filed under B: Correspondence 1952, Box #37, Folder #19]
• Letter from LP to Mr. Jerry Bell Re: answers some questions that this student had for him about the occupation of academic research chemistry. [Letter from Mr. Bell March 25, 1952].
• Letter from LP to Prof. Arthur W. Davidson, Department of Chemistry, U of Kansas RE: in response to Prof. Davidson's letter, LP sends word that Caltech does not make use of any psychological, aptitude, or interest pattern tests with their graduate students, so he has no pertinent information to supply him with regarding those practices. [Letter from Prof. Davidson to LP March 8, 1952, letter of response from Prof. Davidson to LP April 11, 1952] [Filed under D: Correspondence 1952, Box #98, Folder #17]
• Letter from LP to Prof. F. E. Malherbe RE: writes that he sends some of the mimeographed notes and problems in physical chemistry that for the most part were worked up by Prof. Bates. [related note to Prof. Prof. Bates March 11, 1952, letter from Prof. Malherbe to LP March 1, 1952] [Filed under M: Correspondence 1952, Box #256, Folder #3]
• Letter from William F. Loranger to LP RE: writes to request that LP participate in honoring Professor George L. Clark at the dedication of the new X-ray laboratories in the Chemistry department at University of Illinois by writing a testimonial letter for the occasion. [Letter of response from the Executive Secretary of Gates and Crellin to Dr. William F. Loranger April 16, 1952].

• AHP writes cheque: to: Market Basket amount: $25.00 [Filed under LP Biographical: Box #4.021, Folder #3]
• Reprint of article "The Sickle-Cell Anomaly as a Sign of Mediterranean Anemia," by John Caminopetros. Original article printed April 5, 1952 in The Lancet. [Filed under LP Science: Box 6.012, Folder 12.3]

• Letter [handwritten] from Professor R. Robinson to LP RE: recommendations to Professor Pierce for Pomona [transcription from a poor photo copy] [Filed under LP Travel: Box #1.001 Folder 1.10]
• Letter from LP to T. Johnson, W.H. Freeman and Co., RE: LP points out two corrections for College Chemistry. [Filed under LP Books, 1950b1.4]

• AHP writes cheque: to: Adohr Milk Farms Inc. amount: $6.75 [Filed under LP Biographical: Box #4.021, Folder #3]
• AHP writes cheque: to: American Asso. of University Professors amount: $5.00 [Filed under LP Biographical: Box #4.021, Folder #3]
• AHP writes cheque: to: Dr. Herbert A. Whipple amount: $64.00 [Filed under LP Biographical: Box #4.021, Folder #3]
• AHP writes cheque: to: Dr. Robert I. Boyd amount: $5.00 [Filed under LP Biographical: Box #4.021, Folder #3]
• AHP writes cheque: to: Fashion Cleaners amount: $8.85 [Filed under LP Biographical: Box #4.021, Folder #3]
• AHP writes cheque: to: Mira Loma Mutual Water Company amount: $3.01 [Filed under LP Biographical: Box #4.021, Folder #3]
• AHP writes cheque: to: Miss Linda Pauling amount: $50.00 [Filed under LP Biographical: Box #4.021, Folder #3]
• AHP writes cheque: to: Pasadena Pool Maintenance Co. amount: $50.00 [Filed under LP Biographical: Box #4.021, Folder #3]
• AHP writes cheque: to: Standard Oil Co. amount: $8.56 [Filed under LP Biographical: Box #4.021, Folder #3]
• AHP writes cheque: to: The Apothecary Shop amount: $6.83 [Filed under LP Biographical: Box #4.021, Folder #3]
• Letter from Burton S. Rosner of Haskins Laboratories to LP RE: Requests talking with LP and his co-workers in June for his study on physiological psychology and related areas for the Carnegie Corporation. [Letter of response from LP to Dr. Rosner April 17, 1952] [Filed under LP Correspondence: Box #340, Folder #17].
• Letter from C.A. Coulson, King's College to LP RE: invites LP to visit King's College on trip to England. [Reply from LP to Coulson April 12, 1952].
• Letter from Dr. med. Hartwig Heyck of the Institute for Nervous Diseases to LP RE: writes that he has studied LP and Dr. Corey's papers on the two Hydrogen-bonded helical configuration of the polypeptide chain and on the mechanism of contraction in the myosin chain. Goes on to discuss his own related work. Finds a connection between the configuration of the quartz and the helical structure of the protein chain. [Filed under H Correspondence: 1952, Box #166, Folder #3]
• Letter from H. D. Wilde of Humble Oil and Refining Company, Texas, to LP RE: says that in a few days LP should receive a copy of the fourth edition of the series "Technical Publications", published by Standard Oil Development Company. Hopes that this volume will remind LP of his friends at Humble and of their best wishes for LP. [Filed under H Correspondence: 1952, Box #166, Folder #3]
• Letter from J.B. Culbertson to LP, RE: Culbertson is pleased to hear that AHP will be accompanying LP on his trip to Cornell. Culbertson notes that a college car will be available to pick up LP and AHP from Columbia and that upon arrival at Mount Vernon there will be an informal dinner for LP and AHP. [LP’s letter April 2, 1952] [Filed under LP Speeches: (Speeches by Linus Pauling, 1952), Box 1952s, Folder 1952s.7]
• Letter from J.H. Sturdivant to LP RE: Proposal and costs reasonable for mezzanine floor in chemical engineering laboratory, but perhaps future growth should be prepared. [Related letter from LP to President DuBridge April 8, 1952]. [Filed under: LP Biographical, Box 1.030, Folder 30.3]
• Letter from J.W. Williams, University of Wisconsin to LP RE: will attend the April 22, 1952 meeting of the Protein Substitute Group. [Filed under LP Science: Box 13.004, Folder 4.3].
• Letter from LP to President DuBridge RE: Requesting an increase in salary for eight members of the Chemistry Division. This is an effort to maintain morale and keep salaries even with new hires. [Filed under: LP Biographical, Box 1.030, Folder 30.3]
• Note from J. A. Campbell to LP RE: Thanks LP for writing the letter of reference for him in application for the Guggenheim Fellowship. He is proud to report that he has received the Ford and NSF fellowships, and so will be using those funds in his work. Hopes to take up LP's offer to study at Caltech. [Letter of response from LP to Mr. Campbell April 14, 1952] [Filed under LP Correspondence: Box #57, Folder #7].

• AHP writes cheque: to: Athenaeum amount: $10.79 [Filed under LP Biographical: Box #4.021, Folder #3]
• AHP writes cheque: to: Chadwick School amount: $12.65 [Filed under LP Biographical: Box #4.021, Folder #3]
• AHP writes cheque: to: Dr. Alvin G. Foord amount: $14.00 [Filed under LP Biographical: Box #4.021, Folder #3]
• AHP writes cheque: to: Dr. John G. Sundbye amount: $10.00 [Filed under LP Biographical: Box #4.021, Folder #3]
• AHP writes cheque: to: McBride Animal Hospital amount: $28.25 [Filed under LP Biographical: Box #4.021, Folder #3]
• AHP writes cheque: to: National Committee to Repeal the McCarran Act amount: $5.00 [Filed under LP Biographical: Box #4.021, Folder #3]
• AHP writes cheque: to: National Wildlife Federation amount: $1.00 [Filed under LP Biographical: Box #4.021, Folder #3]
• AHP writes cheque: to: Pacific Tel and Tel amount: $20.13 [Filed under LP Biographical: Box #4.021, Folder #3]
• AHP writes cheque: to: Richfield Oil Corporation amount: $15.71 [Filed under LP Biographical: Box #4.021, Folder #3]
• LP Political: Passport Problems April 1952: copy of a statement from J.G. Crowther, Secretary-General to the Members of the Executive Council and Affiliated Organizations RE: encloses for their information a letter from M. Phillips of the American Association of Scientific Workers to the British Ambassador, The Rt. Hon. Sir Oliver Shewell Franks RE: lets them know that the British Government has refused to grant visas or entry into England for the purpose of attending a Council Meeting of the World Federation of Scientific Workers. [Filed under LP Biographical: Political Issues: Box 2.002, Folder 2.6]
• Letter from D.P. Riley, The Royal Institution, [dated April 8, 1951?] to LP RE: looking forward to meeting LP and asking if LP would be available to meet before the Royal Society meetings beginning on May 1 [Filed under LP Travel: Box #1.001 Folder 1.10]
• Letter from LP to Dr. F. J. Allen RE: thanks Dr. Allen for the note about an error in the book College Chemistry. [Filed under LP Correspondence: Box #5, Folder #3].
• Letter from LP to Dr. F.J. Allen, Purdue University, RE: LP thanks Allen for his note about the error on Le Chatelier's name in College Chemistry. [Filed under LP Books, 1950b1.4]
• Letter from LP to Dr. J. S. McKinley McKee RE: thanks Dr. KcKee for his note and writes that he is glad to hear about the work that he is carrying on. Also writes that there are no openings available at Caltech at that time due to a lack of funds. Will perhaps talk about the matter with him next month when he visits England. [Note from Dr. KcKee March 30, 1952] [Filed under M: Correspondence 1952, Box #256, Folder #3]
• Letter from LP to Dr. R. Byron Bird RE: just got Dr. Bird's letter and list of expenses. Again apologizes for not writing sooner, and thanks Dr. Bird for a successful visit last February. [Letter on the back of this letter addressed to a Mrs. Townsend, same date, titled "expenses of R. B. Bird." Asks that she send a check to Dr. Bird, in payment for "our share of expenses in connection with Dr. Bird's trip to the west coast."] [Letter from Dr. Bird to LP April 12, 1952] [Filed under B: Correspondence 1952, Box #37, Folder #19]
• Letter from LP to Irvine Page, RE: LP notes that his plans are still uncertain and that he can not make a definite commitment to speaking in Cleveland at this time. [Page’s letter April 3, 1952] [Filed under LP Speeches: (Speeches by Linus Pauling, 1952), Box 1952s, Folder 1952s.8]
• Letter from LP to Mrs. Louise LeRosen RE: Thanks her for her note. Writes to Mrs. LeRosen to tell her his pleasure in having had Arthur LeRosen as a collaborator at Caltech in light of his recent death. [Filed under L: Correspondence 1952, Box #230, Folder #18]
• Letter from LP to President DuBridge RE: recommendation for the approval of funding for the Chemical Engineering Lab mezzanine floor installation. [Related letter from J.H. Sturdivant to LP April 7, 1952]. [Filed under: LP Biographical, Box 1.030, Folder 30.3]
• Letter from LP to Prof. G. L. Clark RE: thanks Prof. Clark for the invitation to participate in the comprehensive symposium on the contribution of x-rays to analytical chemistry for the American Chemical Society national meeting. Writes that he will not be able to participate. [previous letter from Prof. Clark to LP April 4, 1952] [Filed under LP Correspondence: Box #66, Folder #2].
• Letter from Prof. Paul A. Beck to LP RE: thanks LP for his last letter, as well as all of the interesting and pertinent comments and criticism. He confesses that his writing was inaccurate. Corrections have been made. He welcomes further criticism. Is especially concerned about a value obtained for nickel [includes a pertinent page from the manuscript in the letter] Looks forward to receiving LP's reprints. [Letter from LP April 1, 1952] [Filed under B: Correspondence 1952, Box #37, Folder #19]

• AHP writes cheque: to: Citizen's Committee to Preserve American Freedoms amount: $10.00 [Filed under LP Biographical: Box #4.021, Folder #3]
• AHP writes cheque: to: Gene Browne amount: $11.65 [Filed under LP Biographical: Box #4.021, Folder #3]
• LP Political: Passport Problems, April 1952: Letter from W.T. Astbury, Prof. In the Dept. of Biomolecular Structure, University at Leeds 2, to LP RE: lets LP know of his reservation at the Rembrandt Hotel in England and also desires to confirm a telegram that he sent LP. [Filed under LP Biographical: Political Issues: Box 2.002, Folder 2.6]
• Letter from Charles M. Apt, M.I.T. to LP. [LP reply April 9, 1952] [Filed under A: Correspondence 1952, Box #12.18]

  April 9, 1952

  Mr. Charles M. Apt

  Room 6-131

  Massachusetts Institute of Technology

  Cambridge, Massachusetts

  Dear Mr. Apt:

  Thank you for writing to me about your new position. I am pleased to learn that you are going to be teaching at Amherst; this seems to me to be a very good way of getting started on your career as a nature investigator and teacher.

  Perhaps you will be interested, in a few years, to consider the possibility of spending your sabbatical year in Pasadena. I hope that our work will be in just as interesting a period after a few years as it is now. In particular, the problem of the structure of nucleic acids may just be developing into a stage of rapid progress; right now not very much is being done, from the x-ray standpoint.

  Sincerely yours,

  Linus Pauling:W

• Letter from LP to Mr. Charles M. Apt RE: thanks for the letter. Congratulations on teaching position. Suggests that Mr. Apt spends his sabbatical in Pasadena in a few years studying the problem of the structure of nucleic acids, esp. from the x-ray standpoint. [Filed under A: Correspondence 1952, Box #12.18]
• Note from Astbury to LP RE: Reservations were made for a hotel in England.
• Note from Rhett H. Breland to LP RE: is a graduate of high-school who questions the accuracy of writings that he came across in a supplementary booklet about atomic energy. Has many questions and theories of his own. [Letter of response from LP to Mr. Rhett H. Breland April 16, 1952] [Filed under B: Correspondence 1952, Box #37, Folder #19]

• Expense reimbursement: California Institute of Technology for traveling expenses to New York and return, $295.42. [Filed under LP Travel: Box #1.001 Folder 1.10]
• Letter from Dr. Oroshnik to LP RE: responds to LP's comments on his paper by explaining his thoughts on some of the seemingly abnormal results in his work. [Letter from LP to Dr. Oroshnik March 13, 1952, letter of response from LP to Dr. Oroshnik April 16, 1952] [Filed under O: Correspondence 1952, Box #300, Folder #14]
• Letter from Esther Simpson of the Society for Visiting Scientists to LP RE: invites LP to a cocktail party for the Royal Society Discussion participants, as well as a luncheon on the day of the Discussion [cocktail party invitation included with letter] [Filed under LP Correspondence: Box #378, Folder #6].

• 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: $19.00 [Filed under LP Biographical: Box #4.021, Folder #3]
• Caltech Ph.D. Oral Examination held for Harry L. Yakel, Jr. [Filed under: LP Biographical, Box 1.016, Folder 16.2]
• Letter from J. Greenspan, of the American Association of Scientific Workers (AAScW) to LP RE: Writes to inform LP that he has been renominated for the office of a National Vice-President of AAScW. Realizes that he is very busy, but elaborates on LP's value to the association and strongly urges him to accept the nomination. [Reply from LP April 16, 1952] [Filed under LP Peace: Box 4.009, Folder 9.1]
• Letter from Prof. A. W. Davidson to LP RE: thanks LP for the reply to his letter of April 4, 1952. [Letter from LP to Prof. Davidson April 4, 1952] [Filed under D: Correspondence 1952, Box #98, Folder #17]

• AHP writes cheque: to: Walter Fritts amount: $36.20 [Filed under LP Biographical: Box #4.021, Folder #3]
• LP Political: Passport Problems, April 1952: Letter from LP to Mrs. RB Shipley, Chief of the Passport Division of the Department of State. [Filed under LP Biographical: Political Issues: Box 2.002, Folder 2.6]

  April 12, 1952

  F130-Pauling, Linus Carl

  Mrs. R. B. Shipley

  Passport Division

  Department of State

  Washington 25, D.C.

  Dear Mrs. Shipley:

  I am writing to ask that you reconsider the decision communicated to me in your letter of February 14, to the effect that a passport is not being issued to me since the Department is of the opinion that my proposed travel would not be in the best interests of the United States.

  After receiving your letter I wrote, on February 29, to President Truman. I have received a letter from Mr. Hassett, stating that so much of my letter as deals with a request for the passport had been referred to the officials in the Department of State. I am not sure that a copy of the letter was sent to you by Mr. Hasett, and accordingly I enclose a copy.

  I may say now that I have changed my plans somewhat, because of the uncertainty connected with the proposed travel. In order to decrease the number of engagements that I would be prevented from filling in case that my travel to Europe were not allowed, I have decided definitely not to attend the meeting of the International Union of Biochemistry in Paris in July. I have also decided to postpone until later my trip to Toulouse in order to receive formally the honorary doctorate degree of Docteur de l'Université that was awarded to me a couple of years ago by the University of Toulouse. My proposed travel, which according to earlier plans was purely for scientific purposes and a vacation for my wife and me, is now purely for scientific purposes and a vacation in England. We propose to fly from New York to London on Sunday, april 27, and to fly from London to New York on Sunday, June 8.

  On May 1 I am scheduled to speak at the Royal Society Conference on the Structure of Proteins. This conference is the first international conference that has been held on this subject since Professor Corey and I discovered our structures for proteins, which were communicated in a series of papers a year ago. The date of the conference was changed to May 1 in order to permit my attendance, the date selected earlier having been one that conflicted with the meeting of the American Philosophical Society in Philadelphia, which I feel that I should attend, because as Vice-President I am scheduled to preside at one of the sessions. I am also scheduled to give a Friday evening Discourse at the Royal Institution of Great Britain, on the subject of the structure of proteins on May 16. As a Foreign Member of the Royal Society and an Honorary Member of the Royal Institution, I would feel that my failure to fulfill my obligations to these two institutions would be discourteous.

  In addition, I have been asked to speak on scientific subjects - the structure of proteins, in which the British scientists are keenly interested - at several universities.

  My wife and I have accepted an invitation to be the guests for a week of Lord and Lady Rothschild, at Cambridge, and also to visit with Sir Robert Robinson and Lady Robinson, at Oxford.

  I feel that it is my duty to point out that it is not my opinion that my proposed travel would not be in the best interests of the United States. I feel on the other hand that my proposed travel would be of significant benefit to the United States, and that the refusal of a passport to me would bring discredit upon the United States.

  Since 1949 I have been under attack by Russian scientists and the Russian Academy of Science on the grounds that my contributions to the theory of resonance in chemistry have not been compatible with the ideological basis of Russian science. I feel that it would produce an unfortunate impression if there were to be official interference with the open discussion with my scientific colleagues in Great Britain of my work on the structure of proteins, a subject which is of importance to biology and medicine as well as to chemistry.

  I remember with pleasure my earlier meeting with you, in 1947, when you kindly issued a passport tome on short notice, in order that my wife and I might go to England (and Sweden), when I had been offered an honorary doctorate by the University of Cambridge, to be conferred in the summer of 1947. May I ask that, in case there are any questions that you would like me to answer, you permit me to come to see you in Washington. My wife and I shall be in Washington on the afternoon of Monday, April 21, and throughout the day of Tuesday, April 22. We should be pleased to come to your office at any time during this period. I am scheduled to attend a meeting of a committee of the Office of Naval Research on Tuesday. As chairman of the committee, I should, I believe, be present at 9:30 A.M., in Building T-3, 17th and Constitution, in order to open the meeting, but I could turn the meeting over to an acting chairman at any time during the day, and come to your office at your convenience. It would be a pleasure for me to talk with you again, and I hope that you can spare me a few minutes on this day. We shall be staying at the Hay-Adams House in Washington.

  Sincerely yours,

  Linus Pauling:W

  cc:JBK

• Letter from Dr. R. Byron Bird to LP RE: acknowledges the receipt of LP's last two letters. Says that he plans to accept an assistant-professorship at Cornell University, starting in September. [Letter from LP April 17, 1952] [Filed under B: Correspondence 1952, Box #37, Folder #19]
• Letter from LP to C.A. Coulson, King's College RE: tentatively accepts invitation to visit King's. [Reply to letter from Coulson to LP April 7, 1952].
• Letter from LP to President DuBridge RE: will not be able to attend the April 15, 1952 budget meeting due to a trip to the east. Reminds DuBridge of the salary issue in the Division of Chemistry. [Filed under: LP Biographical, Box 1.030, Folder 30.3]
• Typescript, “A Report on Collagen.” [Filed under LP Manuscripts of Articles: (Manuscripts and Typescripts of Articles by Linus Pauling, 1952), Box 1952a, Folder 1952a.8]

• Note from Makisaburo Ogasawara to LP RE: writes that he received LP's kind letter commenting on his notebooks, as well as the parcel of the notebooks. Sends a parcel of thanks to LP. Writes that his manuscript has not yet been accepted by any book companies for publication. [Letter from LP to Prof. Ogasawara March 14, 1952] [Filed under O: Correspondence 1952, Box #300, Folder #14]

• AHP writes cheque: to: Collector of Internal Revenue amount: $12.39 [Filed under LP Biographical: Box #4.021, Folder #3]
• AHP writes cheque: to: Sue Perry amount: $30.00 [Filed under LP Biographical: Box #4.021, Folder #3]
• LP Political: Passport Problems, April 1952: Letter from LP to Mrs. R.B. Shipley, Chief of the Passport Division of the Dept. of State RE: elaborates on his letter of April 12, 1952 to inform her of another engagement that he is expected to participate in during his planned visit to England. Still hopes to be issued a passport. [Filed under LP Biographical: Political Issues: Box 2.002, Folder 2.6]
• LP writes cheque: to: American Association of Scientific Workers amount: $2.50 [Filed under LP Biographical: Box #4.021, Folder #3]
• LP writes cheque: to: American Crystallography Association amount: $5.00 [Filed under LP Biographical: Box #4.021, Folder #3]
• LP writes cheque: to: Bennett Travel Agency amount: $1769.29 [Filed under LP Biographical: Box #4.021, Folder #3]
• LP writes cheque: to: California Institute of Tech. Bookstore amount: $8.38 [Filed under LP Biographical: Box #4.021, Folder #3]
• LP writes cheque: to: Franchise Tax Board amount: $114.27 [Filed under LP Biographical: Box #4.021, Folder #3]
• LP writes cheque: to: Howard Fast amount: $2.50 [Filed under LP Biographical: Box #4.021, Folder #3]
• LP writes cheque: to: International Society of Hematology amount: $3.00 [Filed under LP Biographical: Box #4.021, Folder #3]
• LP writes cheque: to: Lee Shippey amount: $10.00 [Filed under LP Biographical: Box #4.021, Folder #3]
• LP writes cheque: to: Southern Calif. Section of A.C.S. amount: $2.00 [Filed under LP Biographical: Box #4.021, Folder #3]
• LP writes cheque: to: Southern Commercial and Savings Bank amount: $806.00 [Filed under LP Biographical: Box #4.021, Folder #3]
• LP writes cheque: to: Treasurer, Society of Sigma Xi amount: $2.00 [Filed under LP Biographical: Box #4.021, Folder #3]
• LP writes counter cheque: to: himself amount: $200.00 [Filed under LP Biographical: Box #4.021, Folder #3]
• Letter from Donald Mare, Industrial Employment Review Board, to A.L. Wirin RE: The board has granted an extension on LP's hearing, which will now occur at May 21, 1952. [LP Safe: Box 2.021, Folder 21.20]
• Letter from LP to Dean Lacey RE: Asks Lacey to refer matters relating to advanced degrees to Prof. Niemann, who will be taking LP's place as Chairman of the Division during his absence in the spring. [Filed under: LP Biographical, Box 1.018, Folder 18.2]
• Letter from LP to Lt. Colonel Lloyd E. Harris RE: encloses a copy of a letter to General Cressy in which he states that Prof. Swift will be able to talk with Lt. Harris on April 28, 1952. LP will himself be in the East at that time. [Letter from Lt. Colonel Lloyd E. Harris to LP April 3, 1952] [Filed under H Correspondence: 1952, Box #166, Folder #3]
• Letter from LP to Miss Rose Lowell of John Marshall High School, CA, to LP RE: in answer to Miss Lowell's enquiry, LP explains about the molecular weights of solid substances not soluble in water. [Note with no date from Miss Lowell to LP RE: asks LP for an explanation on how to determine the molecular weight of solids which are not soluble in water] [Filed under L: Correspondence 1952, Box #230, Folder #18]
• Letter from LP to Mr. J. A. Campbell RE: responds that he is pleased that Mr. Campbell has received the Ford and NSF grants to enable him to study at Cambridge and do some work in the Royal Society archives. [Letter from Mr. Campbell to LP April 7, 1952] [LP Correspondence: Box #57, Folder #7.
• Letter from Walter E. Downs to LP RE: Asks LP if he would be able to test some of his crude oil so as to find out its complete breakdown of all elements. [Letter of response from LP April 22, 1952] [Filed under D: Correspondence 1952, Box #98, Folder #17]
• Railroad reservation and sales receipt: Santa Fe Railroad, Washington and Philadelphia [Filed under LP Travel: Box #1.001, Folder 1.10]

• AHP writes cheque: to: Liebergs amount: $3.88 [Filed under LP Biographical: Box #4.021, Folder #3]
• Airline ticket: Baca Airlines, Kansas City to Columbia, Missouri [Filed under LP Travel: Box #1.001 Folder 1.10]
• LP and AHP travel from Los Angeles to Kansas City, and then on to Columbia Missouri. A hotel reservation is made by Professor George H. Vineyard.
• LP letter of reply to Mr. Irving Rubin RE: states in reply to request of information on the structure of viruses that at this time LP and his associates have nothing "significant to report in that field." [Rubin letter April 3, 1952] [Filed under A: Correspondence 1952, Box #12.18]
• Letter from Edwin T. Goodridge of Horizons Incorporated to LP RE: writes that he has just written to Prof. Robert G. Bacher that "the writer" expects to be in L.A. during the week of April 21st. They are anxious to meet with LP to discuss problems of mutual interest. Will contact LP later. [Letter of response from the Executive Secretary of Gates and Crellin Laboratories to Mr. Goodridge April 17, 1952] [Filed under G: Correspondence 1952, Box #140, Folder #16]
• Letter from LP [Signed in his absence by Beatrice Wulf] to Frances V. Benner, American Chemical Society, RE: Writes that reluctantly he will not be able to make a lecture tour due to his other commitments. [Letter from Benner to LP, March 14, 1952, Letter from Benner to LP, April 18, 1952] [Box 14.006, Folder 6.4]
• Letter from LP [signed by Beatrice Wulf] to Esther Simpson, Society for Visiting Scientists, RE: accepting a luncheon invitation. [Letter from Simpson dated March 10, 1952] [Filed under LP Travel: Box #1.001 Folder 1.10]
• Letter from LP [signed in his absence by Beatrice Wulf] to Dr. Fankuchen RE: writes that he is interested in contributing to Dr. Fankuchen's proposed book on Science and the Art of Peace, on several conditions. [previous letter from Dr. Fankuchen to LP March 31, 1952, following letter from Dr. Fankuchen to LP May 13, 1952] [Filed under LP Correspondence: Box #117, Folder #4].
• Letter from LP [signed in his absence by Beatrice Wulf] to Dr. Hartwig Heyck of the Institute for Nervous Diseases RE: thanks Dr. Heyck for sending the reprint of his work on piezoelectric effect in the relation to muscular contraction and nervous excitation. Unfortunately, due to a trip to the East coast and to England, LP will not be able to meet with Dr. Heyck in the U.S. [Filed under H Correspondence: 1952, Box #166, Folder #3]
• Letter from LP [signed in his absence by Beatrice Wulf] to Dr. V. C. Wilson RE: is unable to invite any of the men mentioned in Dr. Wilson's letter to Pasadena. Does not expect to attend the symposium on magnetism either. [Letter from Dr. Wilson to LP March 13, 1952] [Filed under LP Correspondence: Box #443, Folder #20].
• Letter from LP [signed in his absence by Beatrice Wulf] to G. Bergman (student, assistant, and junior staff member of 10 yrs. of LP) RE: discusses alloys and europium amalgams. Suggests taking powder photographs to check the structures of the alloys. [Filed under LP Correspondence: Box #27, Folder #12].
• Letter from LP to Dr. D. P. Riley of the Royal Institution, England RE: writes that he would like to speak with Dr. Riley before the Royal Society Meeting. Sends some reprints under separate cover. [Note from D.P.Riley to LP June 16, 1952] [Filed under LP Correspondence: Box #329, Folder #6: File (Riley, D. P.)].
• Letter from LP to Esther Simpson, the Society for Visiting Scientists RE: would be pleased to attend a luncheon.

• Flyer for O.M. Stewart Lecture at the University of Missouri with LP speaking on “The Structure of Proteins.” [Filed under LP Speeches: (Speeches by Linus Pauling, 1952), Box 1952s, Folder 1952s.6]
• Letter from LP [Signed in his absence by Beatrice Wulf] to Alden H. Emery, American Chemical Society, RE: Writes that he is sorry to say he did not find anyone who can lecture on chemistry in Spanish and is interested in the position. [Letter from Carter to Emery, February 18, 1952] [Box 14.006, Folder 6.4]
• Letter from LP [signed in his absence by BW] to Pres. Samuel D. Marble of Wilmington College RE: writes in response to Pres. Marble's letter of enquiry answers questions about his stance on and opinions about atomic bombs and war. [Letter from Pres. Marble to LP February 5, 1952] [Filed under M: Correspondence 1952, Box #256, Folder #3]
• Letter from LP [signed in his absence by Beatrice Wulf] to the Gentlemen of Hertz Drivurself Stations RE: asks that they return a $25 deposit he made for damage to a car door, as it has been cleared through insurance. [Note in pencil on top right of letter: "LP.- Do you want to write again -or want me to? BW"] [car rental receipt is also included with LP's letter.] [note from Mrs. Frank Aydelotte to LP also attached [December 3, 1951] RE: writes that she believes she may have dented LP's rental car when she backed out of her driveway. Insists on paying for any damages]. [Letter from Mr. Frank Aydelotte to Hertz Drivurself Stations, PA cc: LP also included [December 6, 1951] RE: recounts the event of his wife damaging one of their cars and sends insurance information to pay for the damage.] [Filed under H: Correspondence 1952, Box #166, Folder #3]
• Letter from LP to Dr. Oroshnik RE: writes that he has received his letter just as he is about to leave for Europe, so he cannot answer Dr. Oroshnik's question. However, he trusts that Dr. Oroshnik will continue his work on his substances. [Letter from Dr. Oroshnik to LP April 10, 1952] [Filed under O: Correspondence 1952, Box #300, Folder #14]
• Letter from LP to J. Greenspan. [Reply to letter of April 11, 1952] [Filed under LP Peace: Box 4.009, Folder 9.1]

  April 16, 1952

  Mr. J. Greenspan

  575 Ocean Avenue

  Brooklyn 26, N.Y.

  Dear Mr. Greenspan:

  I am pleased to accept nomination as National Vice-President of AAScW for 1952-53.

  I have felt, that the distance from here to New York and the many demands on my time made it wise for me not to continue in office, but I am willing to fill out the third year of the three-year sequence, and I appreciate the honor of having been nominated again.

  Sincerely yours,

  Dictated by Linus Pauling Signed in his absence:W

• Letter from LP to Mr. Rhett H. Breland RE: responds to Mr. Breland's letter saying that he is not clear about Mr. Breland's difficulty with the principle of conservation of mass. [Letter from Mr. Breland to LP April 9, 1952] [Filed under B: Correspondence 1952, Box #37, Folder #19].
• Letter from the Executive Secretary of Gates and Crellin Laboratories to Dr. William F. Loranger RE: writes that LP has asked her to let him know that he has been busy preparing to leave Pasadena for a trip that he has not had a chance to answer his letter. If he can do it later he will. [Letter from Dr. Loranger to LP April 4, 1952, letter of response from Dr. Loranger to the Executive Secretary of Gates and Crellin April 16, 1952, note written on and sent back on original letter from Beatrice Wulf to Dr. William F. Loranger].
• Note from Dr. William F. Loranger [written on the original letter from BW to Dr. Loranger] to Beatrice Wulf RE: writes that it is not necessary for LP to write at a later date. They received enough letters from other people. [Letter from Beatrice Wulf to Dr. Loranger April 16, 1952, letter from LP to Dr. Loranger July 1, 1952].
• Pauling Scrapbook: flyer RE: LP speaks on the structure of proteins at the U. of Missouri Dept. of Physics for an O. M. Stewart Lecture. [Filed under LP Biographical: Box 6.006, Folder 6.23]
• Speech by LP on The Structure of Proteins, O.M. Stewart Lecture, Department of Physics, University of Missouri. [Filed under LP Speeches: 1952s.6]

• LP and AHP travel by car to Mt. Vernon, Iowa from Columbia, Missouri to Cornell College. J.B. Culbertson of the Chemistry Department arranges for them to stay the night in a dormitory.
• Letter from A.L. Wirin, Attorney, to LP RE: Relays a conversation that Wirin had with Donald Mare in Washington. He also explains that no further extensions on a hearing will be granted by the Industrial Employment Review Board. [LP Safe: Box 2.021, Folder 21.19]
• Letter from Dr. G. E. Burch to Dr. Henry Allen Moe, cc: LP RE: a letter of thanks for the honor to be selected as a fellow of the Guggenheim Foundation. Indicates that he intends to use the funds granted with the fellowship to the best of his ability. [Filed under LP Correspondence: Box #33, Folder #8].
• Letter from Executive Secretary of Gates and Crellin Laboratories to Mr. Goodridge of Horizon's Inc. RE: writes in response to Mr. Goodridge's letter that LP has gone to the East on a trip and will not be in Pasadena on the date of the suggested meeting by Mr. Goodridge. Suggests that he meet with someone else at Caltech. [Note in pencil in the upper right corner of the letter " Visited - 4/22/52 Interested in interviewing applicants for jobs, also wanted to see LP to tell him about 'Horizon Inc.'"] [note in pen just below pencil note says "I telephoned Mr. G. 9:30 AM May 28 Cleveland."] [Filed under G: Correspondence 1952, Box #140, Folder #16]
• Letter from LP [signed in his absence by BW] to Dr. Burton S. Rosner RE: in response to Dr. Rosner's letter, LP says that he looks forward to talking with him in June. [Letter from Dr. Rosner to LP April 7, 1952, letter of response from Dr. Rosner to LP April 21, 1952] [Filed under LP Correspondence: Box #340, Folder #17].
• Letter from LP to Alden Emery, ACS RE: sorry to say that he hasn't succeeded in finding anyone matching the UNESCO description. [Related document from Emery to LP March 5, 1952]. [Filed under LP Science: Box 14.006, Folder 6.4].
• Letter from LP to Dr. R. Byron Bird RE: thanks for the letter of April 12, 1952. Glad to hear that Dr. Bird accepted job at Cornell instead of in industry. [Letter from Dr. Bird April 12, 1952] [Filed under B: Correspondence 1952, Box #37, Folder #19].
• Speech by LP on Chemistry in Relation to Medicine, Cornell College, Mt. Vernon, Iowa. [Filed under LP Speeches: 1952s.7]

• LP Political: Passport Problems, April 1952: Letter from Prof. WT Astbury of the Dept of Biomolecular Structure at the University of Leeds 2, to LP RE: lets LP know of their invitation by Edsall to the Courtaulds Research Laboratory at Maidenhead on May 5. [Filed under LP Biographical: Political Issues: Box 2.002, Folder 2.6]
• LP Political: Passport Problems, April 1952: Letter from R.B. Shipley of the Department of State to LP RE: writes that she has received LP's letters of April 12, 1952 and April 14, 1952. However, is still unable to grant him a passport. [Filed under LP Biographical: Political Issues: Box 2.002, Folder 2.6]
• LP Political: Passport Problems, April 1952: Page from an unknown publication with the heading "Comments and Communications" including a comment by A. H. Gordon of the Science for Peace Committee of England on the issue of biological warfare. [relates loosely to letter from LP to Mr. Boykin April 21, 1952] [Filed under LP Biographical Box 2.002, Folder 2.6].
• LP Political: Passport Problems, May 1-16, 1952: Letter from M. Gilburt, Secretary of King's College, Strand, London to LP RE: informs LP that Prof. Coulson is moving to Oxford. Affirms LP's agreement to take part in the colloquium at King's College. [related letter from Prof. Charles Coulson to LP May 3, 1952]. [Filed under LP Biographical: Political Issues: Box 2.002, Folder 2.7]
• LP and AHP fly to Chicago, and then on to New York. That night, attends Executive Committee meeting of Sigma Xi Graduate Club, 155 Elm Street.
• LP rents a car from the Avis Rent-A-Car at La Guardia Airport.
• Letter from Dr. G. E. Burch to LP RE: thanks LP for helping him obtain a fellowship of the Guggenheim Foundation. Mentions working with LP on studies on the treatment of sickle cell crises. [previous letter from LP to Dr. Burch February 8, 1952, letter of response from LP to Dr. Burch May 15, 1952] [Filed under LP Correspondence: Box #33, Folder #8].
• Letter from Frances V. Benner, Special Assistant, American Chemical Society, to LP, RE: Thanks him for his letter and writes that although many local sections will be disappointed, they understand his decision and thanks him for his interest. [Letter from LP to Benner, April 15, 1952] [Box 14.006, Folder 6.4]
• Letter from Frank H. Johnson of Princeton U. to LP RE: in connection with a manuscript that he and Dr. Henry Eyring are preparing for a book entitled "Molecular Biology," he requests the permission to use figures by LP from the Proceedings of the National Academy of Sciences. [Note in pen in left margin: "Ansd. OK"] [Filed under J: Correspondence 1952, Box #192, Folder #18]
• Letter from MacMillan and Co. Ltd., Nature magazine to LP RE: request a copy of his intended discourse on the Structure of Proteins at the Friday Evening Discourse at the Royal Institution. [Letter of response from LP to The Editors of Nature May 12, 1952].
• Letter from W. L. Bragg RE: Looking forward to seeing LP, wants him to be his guest at the Royal Society Club dinner in May. [following letter April 22, 1952]
• Letter from the Department of the Navy Office of Naval Research to Caltech RE: Additional research on the structure of proteins and polypeptides is requested, and the budget is increased from $25,000 to $75,000. The length of contract is also changed, being extended to 1954. [Filed under LP Science: Box 13.004, Folder 4.3].

• LP attends the Executive Committee meeting of Sigma Xi Graduate Club in New York.
• LP returns the car rented on April 18, 1952.

• LP and AHP check into the Hay Adams House Hotel. [Receipt, checkout April 23, 1952].
• LP and AHP leave New York at 12:50 AM from Jersey City and travel to Washington D.C.
• Letter from Mr. Joe Capsin to LP RE: Thanks LP for his letter of March 31, 1952 as well as the lovely photo of LP. Is glad to hear of LP's success in protein study. Is also glad to hear of LP Jr.'s internship in Honolulu. Says that he will watch over LP Jr. and says that he is in good company in Honolulu, in particularly with a Dr. Nils P. Larsen. Goes on to describe Dr. Larsen. [includes and newspaper clipping in praise of Dr. Larsen] [Letter of response from LP May 15, 1952] [Found under LP Correspondence: Box #57, Folder #9].

• LP Political: Passport Problems, April 1952: copy of F.A.S. [Federation of American Scientists] Newsletter with article entitled "Can Science Remain International?" [Filed under LP Biographical: Political Issues: Box 2.002, Folder 2.6]
• LP Political: Passport Problems, April 1952: handwritten copy of a note from LP to Mr. S.D. Boykin, Director of the Office of Security and Consular Affairs, Department of State RE: sends documents that refute any ideas that LP is a Communist in an attempt to obtain a passport for travel to Europe. Lists those documents and sends a money order for his passport. [Filed under LP Biographical: Political Issues: Box 2.002, Folder 2.6]
• LP attends a hearing in Washington D.C. [Note on itinerary: "Please let BW know about release of statement."].
• Letter from C.H. Bamford, Courtaulds, Ltd. to LP RE: Wishes to continue academic discussion when LP is in England and would like to host LP. [Reply from LP to Bamford May 1, 1952].
• Letter from Dr. Burton S. Rosner to LP RE: thanks LP for the letter and for the tentative confirmation of their meeting in Pasadena in June. [Letter from LP to Dr. Rosner April 17, 1952] [Filed under LP Correspondence: Box #340, Folder #17].
• Letter from Dr. T. Rogers director at Fundamental Research Centre in London to LP RE: Would like to interview LP with regard to his work on protein structure.
• Letter from Frederic Joliot-Curie to LP RE: implores LP to stay with his Vice-Presidency of the World Federation of Scientific Workers. Goes on to describe the works of the Federation. [Letter in French, summary made from rough translation] [Copy of January 1952 Letter from Frederic Joliot-Curie to the Presidents of the Association of Scientific Workers affiliated with the WFSW included] [Filed under LP Correspondence: Box #190, Folder #4].

• LP Biographical Political: Passport Problems, May 1-16: copy of letter from Sir Bragg to LP RE: invites LP to be his guest at the meeting of the Royal Society Club. [Letter of response from LP to Sir Bragg May 15, 1952]. [Filed under LP Biographical: Political Issues: Box 2.002, Folder 2.7]
• LP Political: Passport Problems, April 1952: copy of a paper entitled "Statement by Linus Pauling" RE: statement describing LP's passport situation. [Filed under LP Biographical: Political Issues: Box 2.002, Folder 2.6]
• LP attends a Protein Substitutes Group meeting at the Office of Naval Research. LP and AHP then travel to Philadelphia, Pennsylvania.
• Letter from J. F. Hyde of the Dow Corning Corporations RE: writes that a symposium for the Fall A.C.S. meeting on the subject of "Inorganic Polymers" is now being planned. Asks if LP would consider taking part in the program. [Letter of response from LP to Mr. Hyde May 15, 1952] [Filed under H Correspondence: 1952, Box #166, Folder #3]
• Letter from LP to Dr. Dorothy Hodgkin of Chemical Crystallography Laboratory, University Museum, Oxford RE: writes that unfortunately he will be unable to attend the Royal Society Meeting or to stay with the Hodgkins' in Oxford due to the US State Department's decision not to grant him a passport. Mentions that they have worked out the structure of silk. [previous letter from LP to Dr. Hodgkin March 27, 1952, following letter from LP to Dr. Hodgkin May 29, 1952] [Filed under LP Correspondence: Box #159, Folder #12 (The Lalor Foundation; Dorothy Hodgkin)].
• Letter from LP to Dr. E. W. Hughes RE: writes that he will not be able to take part in the Royal Society meeting due to passport problems. Says that he has asked the president of the Royal Society, Astbury, to invite Dr. Hughes to present LP's paper. [previous letter from LP to Dr. Hughes April 3, 1952, note of response from Dr. Hughes to LP May 2, 1952] [Filed under LP Correspondence: Box #163, Folder #1].
• Letter from LP to E.B. Adrian, The Royal Society RE: apology for not being able to attend the Royal Society meeting due to his inability to travel to England.
• Letter from LP to E.N.C. Andrade, The Royal Institution RE: regretfully informs Andrade that he will not be able to present the Friday Evening Discourse for the Royal Society. Outlines the situation with the Department of State.
• Letter from LP to Esther Simpson, Society for Visiting Scientists RE: will not be able to attend the planned reception in London due to his inability to obtain a passport. LP recommends that Dr. Hughes - a member of Caltech currently at Leeds - be invited in his place.
• Letter from LP to Lord Rothschild of Trinity College RE: writes that his planned visit to England will unfortunately not be able to take place due to passport issues, so he will have to cancel his plans to stay with him. [Letter from LP to Lord Victor Rothschild March 13, 1952] [Filed under LP Correspondence: Box #336, Folder #6: File (Rothschild, Victor.)].
• Letter from LP to Mr. Walter E. Downs RE: Is sorry to inform Mr. Downs that the Chemistry department does not actually undertake such analyses of the sort mentioned in his letter. [Letter from Mr. Downs to LP April 14, 1952] [Filed under D: Correspondence 1952, Box #98, Folder #17]
• Letter from LP to Prof. Professor A. Todd of U. of Cambridge RE: writes of his misfortune with the State Department in denying him his passport for travel to attend the Royal Society Meeting. Also congratulates Prof. Todd on his new appointment. [Letter from Prof. A. Todd to LP February 5, 1952, letter from LP to Prof. Todd May 12, 1952] [Filed under LP Correspondence: Box #407, Folder #6].
• Letter from LP to Professor W.T. Astbury, The University at Leeds RE: Regrets that he will not be able to attend the Royal Society meeting, but states that Dr. Hughes may present his paper for him. [Related letter from LP to Hughes April 22, 1952].
• Letter from LP to Robert Corey RE: writes that he has just informed Astbury, President of the Royal Society that he will not be able to take part in the conference on protein structure due to passport problems. [Filed under LP Correspondence: Box #67, Folder #5].
• Letter from LP to Sir Robert Robinson, Oxford RE: regrets to learn that Sidgwick (a professor at Oxford) has died. Informs Robinson that he will regretfully not be able to visit him or his wife on his cancelled trip to England. Goes on to outline the situation with the Department of State.
• Letter from Miron Morrill to LP, RE: Morrill thanks LP for visiting Cornell College. Morrill is enclosing a check for LP’s honorarium and for Cornell’s share of his expenses. [Filed under LP Speeches: (Speeches by Linus Pauling, 1952), Box 1952s, Folder 1952s.7]
• Letter from W. L. Bragg RE: hoping that after the protein meeting at the Royal Society, LP will be able to come as his guest to the Royal Society Club dinner. [previous letter sent April 18, 1952].
• Letter to Sir L. Bragg RE: Regrets that he is not able to attend the Royal Society Club meeting on May 1 because the U.S. will not issue him a passport as it does not view the trip as "in the best interests of the United States." Goes on to describe some of the social engagements that he had planned for England. [follow up letter May 5, 1952] [response to LP May 5, 1952]
• Typescript, "Statement by Linus Pauling." LP writes a statement regarding his passport denial by the State Department. He insists that this refusal is not in the best interest of the United States, and criticizes the McCarren Act. He then compares Russia's refusal of allowing LP's theory of resonance to be taught to the United States' not allowing him to obtain a passport. [Filed under LP Manuscripts of Articles: (Manuscripts and Typescripts of Articles by Linus Pauling, 1952), Box 1952a, Folder 1952a.9] [Also filed under LP Safe: Box 2.039, Folder 39.60]

• Airline ticket: Eastern Airlines: Washington DC to Philadelphia [Filed under LP Travel: Box #1.001 Folder 1.10]
• LP Political: Passport Problems, April 1952: Copy of a handwritten note by LP entitled "Statement by Linus Pauling" RE: recounts all significant events regarding his refusal of a passport from April 21, 1952 through April 23, 1952. [Filed under LP Biographical: Political Issues: Box 2.002, Folder 2.6]
• LP and AHP arrive in Philadelphia and stay at the Hotel Benjamin Franklin.
• LP and AHP checkout of the Hay-Adams House Hotel. [Receipt, check-in April 20, 1952].
• LP research notes on Bessel-functions for α-helix and collagen. [Filed under LP Science: Box 6.004, Folder 4.25]
• LP writes cheque: to: Hay Adams House amount: $54.27 [Filed under LP Biographical: Box #4.021, Folder #3]
• Letter from Dr. Junji Hashimoto to LP RE: is an engineer in Japan who sends LP a report based on his own electrochemical experiments to produce metal hydroxides directly from metals. Asks that LP read his report and comment if interested. [Letter of response from LP to Mr. Hashimoto July 21, 1952] [Filed under H Correspondence: 1952, Box #166, Folder #3]
• Letter from J. L. Morrison to LP RE: inquires as to why he has heard nothing from LP regarding his paper on "Non Specific Protein Precipitation by Dyes." For many reasons he would like to publish as much of his work as possible, and will prepare for publication the work on the above problem. [related correspondence from J. L. Morrison to LP starting January 26, 1950] [Letter of response from LP to Dr. Morrison May 22, 1952].
• Manuscript, “Statement by Linus Pauling,” communications with Ruth Shipley and others about passport problems. [Filed under LP Manuscripts of Articles: (Manuscripts and Typescripts of Articles by Linus Pauling, 1952), Box 1952a, Folder 1952a.10]

• LP Political: Passport Problems , April 1952: Letter from LP to Dr. E.N.C. Andrade of the Royal Institution RE: breaks the news that he will be unable to deliver the Friday Evening Discourse at the Royal Institution on May 16 due to his inability to obtain permission for travel from the Department of State. [Filed under LP Biographical: Political Issues: Box 2.002, Folder 2.6]
• LP Political: Passport Problems, April 1952: Letter from LP to Sir Lawrence Bragg of Cavendish Laboratory RE: breaks the news of his being unable to travel to England and to participate in the Royal Society Discussion Meeting on the structure of proteins due to his inability to obtain permission for travel from the Department of State. [Filed under LP Biographical: Political Issues: Box 2.002, Folder 2.6]
• LP Political: Passport Problems, April 1952: copy of letter from Robert J. Havinghurst to Professor Frederic Joliot-Curie, Chairman of the World Council for Peace RE: discusses an allegation, brought to their attention by Prof. Joliot-Curie's letter of March 8, 1952, that the U.S. armed forces in Korea were engaging in the use of bacteriological weapons. Submits a skeptical stance in regard to this allegation. [Filed under LP Biographical: Political Issues: Box 2.002, Folder 2.6]
• LP attends the American Philosophical Society meetings in Philadelphia.
• Letter from Richard Lippman, M.D. to LP RE: Lippman's trip East was quite successful, with several successful lectures given and several job offers made. [In reply to letter from LP to Lippman April 1, 1952]. [Filed under LP Correspondence: Box #217, Folder #5 (Lippman)].
• Memo from A.H. Walter to LP RE: Attached is an amendment to the contract with the Office of Naval Research that needs approval. [Filed under LP Science: Box 13.004, Folder 4.3].
• Note from Dr. Federico A. Lehmann to LP RE: writes that they have finally received the starting materials for the plasma-substitute. Asks if he can send LP some of their preparations to check. [Note in pencil at bottom of letter: "4/30/52- Peter Lehmann brought this letter in today; he was to be interviewed about admission to the Institute. BW"] [Letter of response from LP to Dr. Lehmann May 7, 1952] [Filed under L: Correspondence 1952, Box #230, Folder #18]
• Note from Dr. Wm. E. Wilson, Head of Department of Chem. at U. of Alaska RE: writes in response to one of LP's letters regarding the possibility of Gunnar Bergman working for them. Unfortunately regulations do not permit them to hire him. Requests that LP suggest anyone interested in working at U. of Alaska for a Master's in Geochemistry. [Letter of response from LP to Dr. Wilson May 27, 1952] [Filed under LP Correspondence: Box #443, Folder #20].
• Note from Prof. F. J. Toole to LP RE: updates LP about Wiesner's receipt of a Guggenheim Fellowship. Tells LP of the new appointments at the University of New Brunswick, as well as Prof. Bailey's visit to Pasadena. [Letter from LP to Prof. F. J. Toole February 29, 1952, letter from LP to F. J. Toole May 9, 1952] [Filed under LP Correspondence: Box #407, Folder #8].
• Pauling Scrapbook: program entitled "The American Philosophical Society, Held at Philadelphia for Promoting Useful Knowledge, Annual General Meeting." RE: has LP listed as Vice President, in the Chair for Friday afternoon's speeches. [several notes by LP in blue ink on the program].

• LP attends the American Philosophical Society meetings in Philadelphia.
• Letter from Edwin H. Land of Polaroid Co. to LP RE: writes that Prof. E B Wilson referred LP's request for info. about the ultraviolet color-translating microscope . Sends some of their published literature about the instrument to Dr. G. W. Beadle. Its development was sponsored jointly between the Office of Naval Research and the American Cancer Society, and so they are currently promoting the instruments under Captain C. W. Shilling. [Note at top: "Dr. Beadle- Please return to LP."] [Filed under: LP Correspondence: Box #312, Folder #17]
• Letter from Lars Gunnar Sillen to LP RE: inquires about when the new edition of LP's "General Chemistry" will be out. [Letter of response from LP to Dr. Sillen May 7, 1952] [Filed under LP Correspondence: Box #378, Folder #6].
• Letter from Robert D. Vold of the U. of Southern California to LP RE: requests that LP speak at the dinner for the Colloid Symposium. [Filed under LP Correspondence: Box #427, Folder #12]
• Pauling Scrapbook: The American Philosophical Society General Meeting Dinner seating arrangement. [Filed under LP Biographical: Box 6.006, Folder 6.23]

• AHP writes cheque: to: Walter Fritts amount: $48.00 [Filed under LP Biographical: Box #4.021, Folder #3]
• LP attends the American Philosophical Society meetings in Philadelphia.

• Itinerary: leave New York for England [in pencil] [trip cancelled due to passport problems] [Filed under LP Travel: Box #1.001 Folder 1.10]

• AHP writes cheque: to: Benjamin Franklin Hotel amount: $57.09 [Filed under LP Biographical: Box #4.021, Folder #3]
• Airline Ticket: Eastern Airlines: Philadelphia to Washington to Idlewild [?] [Filed under LP Travel: Box #1.001 Folder 1.10]
• LP Political: Passport Problems, April 1952: Letter from LP to Dr. E.W. Hughes, of the Chemistry Department of the University of Leeds 2 RE: discusses his inability to participate in the discussion meeting of the Royal Society. Mentions correspondence with Astbury and the President of the Royal Society. Asks that Hughes present his paper on the structure for him at the discussion meeting. [Filed under LP Biographical: Political Issues: Box 2.002, Folder 2.6]
• LP Political: Passport Problems, April 1952: Letter from LP to Miss Esther Simpson, Assistant Secretary of the Society for Visiting Scientists, RE: breaks the news that he will not be present at the reception as planned in April due to his inability to obtain a passport. Sends Dr. EW Hughes in his place to present his paper on the structure of Proteins at the Royal Society conference on May 1. [Filed under LP Biographical: Political Issues: Box 2.002, Folder 2.6]
• LP Political: Passport Problems, April 1952: Letter from LP to Prof. A. R. Todd, F.R.S. of the University Chemical Laboratory of Cambridge England RE: breaks the news to Prof. Todd that he will not be able to see him as planned in May due to his inability to obtain a passport. [Filed under LP Biographical: Political Issues: Box 2.002, Folder 2.6]
• LP Political: Passport Problems, April 1952: Letter from LP to Prof. E. D. Adrian, President of the Royal Society RE: writes that he has just informed Dr. Astbury of his inability to participate in the Royal Society discussion conference on the structure of proteins. [envelope addressed Prof. E. F. Adrian included]. [Filed under LP Biographical: Political Issues: Box 2.002, Folder 2.6]
• LP Political: Passport Problems, April 1952: Letter from LP to Prof. W.T. Astbury, F.R.S. of the Department of Biomolecular Structure of the University of Leeds 2, England RE: breaks the news that he will not be able to take part in the Discussion Meeting of the Royal Society on May 1 as planned due to his inability to obtain a passport. [Filed under LP Biographical: Political Issues: Box 2.002, Folder 2.6]
• LP Political: Passport Problems, April 1952: Letter from LP to Sir Robert Robinson RE: breaks the news that he will be unable to attend the Royal Society conference on the structure of proteins due to his inability to obtain a passport. Also thanks him for the letter of April 6, 1952 and mentions his learning of Sidwick's death. Hopes to visit Oxford at a later date. [Filed under LP Biographical: Political Issues: Box 2.002, Folder 2.6]
• LP Political: Passport Problems, April 1952: letter from LP to "Bob" ["R.B.C." Dr. Corey?] RE: informs him that he has just informed Astbury and the president of the Royal Society that he will be unable to attend the Royal Society discussion meeting on the structure of proteins in England and thus asks that Hughes help him present his paper. [Filed under LP Biographical: Political Issues: Box 2.002, Folder 2.6]
• LP Political: Passport Problems, April 1952: letter from LP to Lord Rothchild of Trinity College informing of his inability to visit him in England due to the Department of State's decision not to issue him a passport. [Filed under LP Biographical: Political Issues: Box 2.002, Folder 2.6]
• LP Political: Passport Problems, April 1952: letter from LP to Mrs. Dorothy Hodgkin of the Chemical Crystallography Laboratory of the University Museum of Oxford. [Filed under LP Biographical: Political Issues: Box 2.002, Folder 2.6]

  April 28, 1952

  Mrs. Dorothy Hodgkin

  Chemical Crystallography Laboratory

  University Museum

  Oxford

  England

  Dear Dorothy:

  I am sorry to say that we are not going to be able to stay with you in Oxford – nor, indeed, to take part in the Royal Society discussion on the structure of proteins. I have received a letter from the Department of State saying that a passport is not being issued to me since the Department is of the opinion that my proposed travel would not be in the best interests of the United States.

  I am keenly disappointed. I am sorry not to get to see you again, and I dislike especially missing the conference on the structure of proteins – I am sure that the discussion will be interesting.

  We seem to have worked out the structure of silk, in nearly complete detail. There is a superstructure, that had not been observed before. The structure itself is an interesting one – silk is a pile of sandwiches, with all of the side chains as the filling in the sandwiches.

  Ava Helen and I hope that we shall be able to come and visit you at some later year when conditions get better.

  Sincerely yours,

  Linus Pauling:W

• Letter from David Pressman of the Sloan-Kettering Institute for Cancer Research to LP RE: Asks for LP's comments on a manuscript of theirs concerning the binding of benzoate ions to rabbit serum proteins. Writes also that they are preparing the manuscript correcting the hapten inhibition constants for albumin binding. Goes on to discuss his work in cell fractions in connection with anti-tissue antibodies. [Letter from LP to Dr. David Pressman January 14, 1952, letter from Dr. David Pressman to LP June 20, 1952] [Filed under LP Correspondence: Box #309, Folder #7 (Pressman, David)].
• Memo from J.H. Sturdivant to A.H. Walter cc: LP RE: with regard to the proposed amendment to the research contract with the office of Naval Research, Sturdivant approves it in the absence of LP. [Related letter from Walter to LP April 24, 1952]. [Filed under LP Science: Box 13.004, Folder 4.3].
• Note from Mrs. Bullock of "The Whisk Company" to LP RE: writes requesting LP review an enclosed letter and article attacking the product her company sells, and it seems, to comment on his opinions of the matter. [Filed under B: Correspondence 1952, Box #37, Folder #19]
• Statement of Payment from Cornell College to LP for Lecture Course for $278.97. [Filed under LP Speeches: (Speeches by Linus Pauling, 1952), Box 1952s, Folder 1952s.7]

• LP Political: Passport Problems, April 1952: Copy of a statement by LP regarding a refusal by the Department of State to issue him a passport. [Filed under LP Biographical: Political Issues: Box 2.002, Folder 2.6]
• Letter from George Vineyard to LP, RE: LP’s statement of expenses has just arrived and the business office will mail LP a check soon. Vineyard thinks that LP’s lecture was the most outstanding of all of the Stewart Lecture Series at the University of Missouri. [LP’s reply June 2, 1952] [Filed under LP Speeches: (Speeches by Linus Pauling, 1952), Box 1952s, Folder 1952s.6]
• Letter from L.P. Eisenhart [?] of the American Philosophical Society to LP RE: Informing him that he has been re-elected Vice President of the APS for the 1952-1953 year. [Filed under LP Science: Box 14.011, Folder 11.2].
• Memo from A.H. Walter to LP RE: Attached is the renewal contract that Caltech has made with the Office of Naval Research. [Related letter from Sturdivant to Walter]. [Filed under LP Science: Box 13.004, Folder 4.3].
• Memo from BW to LP RE: writes that Mr. Bantrell telephoned and is leaving May 10 for a trip east. Would like to talk with LP before then or sometime between June 1 and 16 if LP is on the east coast. [Filed under B: Correspondence 1952, Box #37, Folder #20]
• Typescript, “Statement by Linus Pauling,” regarding travel restrictions due to passport problems. [Filed under LP Manuscripts of Articles: (Manuscripts and Typescripts of Articles by Linus Pauling, 1952), Box 1952a, Folder 1952a.11] [Also filed under LP Safe: Box 2.021, Folder 21.33]

• AHP writes cheque: to: Sue Perry amount: $10.00 [Filed under LP Biographical: Box #4.021, Folder #3]
• Letter from Weldon G. Brown to Dr. Carl Niemann, [original letter in LP's possession] RE: Letter concerns his plans in the near future. Intends to leave around May 15th. Cannot decide whether to travel by air or not, asks for advice. [Letter in response from Dr. Carl Niemann, cc:LP May 12, 1952] [Filed under B: Correspondence 1952, Box #37, Folder #19].