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• Reprint: Steinhardt J. Properties of hemoglobin and pepsin in solutions of urea and other amides Reprinted from The Journal of Biological Chemistry 123 (2). [Filed under LP Science: Box #6.009, Folder #9.1]
• Typescript Report, X-ray Diffraction Photographs re: structure of CCl4, April 1938. [by Verner Schomaker] [Filed under LP Science: Box #1.001, Folder #1.12]

• Inter-Department Communication from E. C. Barrett to LP RE: Barrett corrects a statement made in an earlier letter (1938-03-31), stating that Hodge S. Taylor who has the Standard Oil Fellowship is working under Dr. Lacey and not under a member of the Engineering Department. [Filed under LP Biographical: Box #1.031, Folder #31.1]
• Note from James H. Smith to LP RE: Inquires if any teaching positions will be open next fall. Goes on to discuss his qualifications and practical experiences. [Filed under: S: Correspondence, Box #377, Folder #377.8]

• Letter from A. W. Laubengayer to LP RE: Informs LP that he has added the section on preparation and purification of the germanes to the paper LP had sent and it is now being forwarded to Lamb. Reports that Grace and the baby came home last Tuesday and all are doing well. [Filed under: L: Correspondence, Box #230, Folder #230.4]
• Letter from E. C. Barrett, Comptroller, C. I. T. to LP RE: Informing LP of actions taken by the Executive Council at C. I. T. which affect the Division of Chemistry and Chemical Engineering at the meetings of October 18, 1937 and November 27, 1937. [Filed under LP Biographical: Box #1.029, Folder #29.1]
• Letter from W. A. Noyes to The Board RE: Noyes encloses an outline of a book on "Catalysts" which Sophia Berkmann, J. C. Morrell and Gustav Egloff are preparing and which they wish to submit as a Scientific Monograph. Asks if the Board approves a contract with the authors. [Filed under: N: Individual Correspondence, Box #279, Folder #279.4]

• AHP writes cheque to: Innes Shoe Company amount $14.68 [Filed under LP Biographical: Box #4.014, Folder #2]
• AHP writes cheque to: Nellie Durby amount $1.50 [Filed under LP Biographical: Box #4.014, Folder #2]
• Letter from LP to Hans Neurath RE: LP is sorry to learn that he has not found life in North Carolina, at Duke, very satisfactory. LP is pleased to say that during the past year he has been able to build up the Chemistry department at CIT somewhat. [Neurath's letter: 3-22 and March 27, 1938] [Filed under: N: Individual Correspondence, Box #276, Folder #276.9]

• Letter from David Harker and Alexander Kossiakoff RE: Reports that they have considered his points and as a result have inserted several paragraphs, enclosed in the letter. [Filed under: H: Individual Correspondence, Box #151, Folder #151.10]
• Letter from LP to Dr. Alden H. Emery RE: Regrets to inform Emery that if will impossible to plan a trip as discussed in his previous letter. [Emery's letter: March 31, 1938] [Filed under LP Correspondence: Box #112, Folder #112.5]
• Letter from LP to Dr. Harry V. Welch RE: LP encloses a letter from Dr. Parsons regarding the meeting of the Council at the Texas meeting of th American Chemical Society. LP regrets to inform him that he will be unable to attend the meeting. [Filed under: W: Correspondence, Box #443, Folder #443.6]
• Letter from LP to Dr. Hughes RE: Is sorry to learn of the failure of the Lalor Foundation to behave properly. LP is very impressed with the new results regarding pentaerythritol. [Filed under: H: Individual Correspondence, Box #163, Folder #163.1]
• Letter from LP to Dr. Karl Landsteiner RE: Thanks Karl for the reprints and the galley of the multiple antibody paper. [Filed under: L: Individual Correspondence, Box #212, Folder #212.7]
• Letter from LP to Professor Arthur Hill, Sterling Chemistry Laboratory at Yale University, RE: Says that he has not been able to make a reply to his March 21st letter and would like to postpone it for a few days. [Letter from Hill to LP, 4-8-1938] [Filed under LP Personal Safe: Drawer 2, Folder 2.005, 5.55]
• Letter from LP to Professor George Scatchard RE: LP regrets to inform him that he will be unable to take part in the Symposium at Brown University. [Scatchard's letter: March 29, 1938] [Filed under: S: Correspondence, Box #377, Folder #377.8]
• Letter from LP to Professor Hugh S. Taylor RE: Thanking Taylor for writing about Professor Marc de Hemptinne. Explains that Hemptinne spoke to a seminar on his interesting work on the deutero-compounds. [Taylor's letter: March 22, 1938] [Filed under: T: Individual Correspondence, Box #405, Folder #405.6]
• Letter from LP to Professor Karl Jellinek RE: LP sends a copy of his book with Professor Wilson "Introduction to Quantum Mechanics" and asks that Jellinek send a copy of his textbook. [Filed under: J: Correspondence, Box #192, Folder #192.5]
• Letter from LP to Professor Paul C. Cross RE: Was interested in learning of Cross's decision to go to Brown but thinks of it as a wise one. Ask that he and his family stop for a visit before leaving. [Filed under LP Correspondence: Box #68, Folder #68.13]
• Letter from LP to Thomas Harrison Davies, Dept. of Physiological Chemistry, The Johns Hopkins School of Medicine RE: Plans for Harrison to arrive in Pasadena on October 1, 1938. He also informs him that he could begin work in Pasadena during the summer as both LP and Coryell will be in residence at the Institute. He also advises him not to worry about the quantum mechanics as he is sure it will be easier to learn at C. I. T. [Filed under LP Science: Box #14.027, Folder #27.3]
• Letter from T. W. Stewart to LP RE: LP encloses a check for $25.00 to reimburse him for the traveling expenses during his visit. [Filed under: S: Correspondence, Box #377, Folder #377.8]
• Letter from Thomas Harrison Davies, Dept. of Physiological Chemistry, The Johns Hopkins School of Medicine to LP RE: Davies will begin at C. I. T. October 1, 1938, unless an earlier date is more convenient for LP. He is afraid he will be unable to master quantum mechanics before he arrives though.

• Inter-Department Communication from E. C. Barrett, C. I. T. to LP RE: Enclosing copies of the letter notifying Dr. Millikan of the grant to C. I. T. in reply to LP's request.(Letter clippings enclosed) [Filed under LP Biographical: Box #1.031, Folder #31.1]
• Letter from Harold C. Urey to LP RE: Asks LP if he can attend a meeting for the Committee on the Application of Mathematics to Chemistry on April 28 at 4:30. [Filed under: Urey, Harold: Reprints and Correspondence, Box #419, Folder #419.1]
• Letter from LP to Arthur B. Lamb, Editor, Journal of the American Chemical Society RE: Encloses illustrations for the paper by Pauling, Laubengayer and Hoard on the "Electron Diffraction Investigation of Digermane and Trigermane." [Filed under LP Science: Box #14.002, Folder #2.3]
• Letter from LP to Calgon, Inc. RE: Asks where he could obtain a supply of calgon for further experiments and for any information regarding the composition of calgon. [Filed under LP Correspondence, Box #74, Folder #74.6]
• Letter from LP to James H. Smith RE: Informing him that there are no positions available at CIT at this time. However, if he is interested in applying for temporary teaching assistantships and fellowships he may do so. [Filed under: S: Correspondence, Box #377, Folder #377.8]
• Letter from LP to Mr. Charles Edward Weir RE: Asking Weir to come to his office if he has registered for research under his direction so that they may discuss his research. [Filed under: W: Correspondence, Box #443, Folder #443.6]
• Letter from LP to Professor A. W. Laubengayer RE: LP congratulates Laubengayer on the birth of their little girl. LP has sent the figures for the germanium paper on to Lamb and shall proof it before sending 100 reprints to him. LP is glad to give information about available men with experience, in this field. [Filed under: L: Correspondence, Box #230, Folder #230.4]
• Letter from LP to Warren Weaver, Director, The Natural Sciences-Rockefeller Foundation. [Weaver's reply to LP April 11, 1938] [Filed under LP Science: Box #14.038, Folder #38.6]

  Dr. Warren Weaver

  The Rockefeller Foundation

  New York, New York

  Dear Dr. Weaver:

  I am enclosing my report on the work of Dr. Dorothy Wrinch, resulting from her visit to Ithaca on January 26th and 27th, 1938. You will see that my impression of her and her work is in general an unfavorable one. I believe, however, that my conclusions are justified. I am sympathetic to the application of physical and mathematical methods to chemical and biological problems, and I began the interview with Dr. Wrinch with the hope that the unsatisfactory aspects of her published work would be removed in the discussion. I found, however, that her methods and results are still less scientific than they had appeared to be from her papers.

  I doubt that her attack on the problem of protein structure will lead directly to any valuable results, and I think that it would not be worth while to have her working in our laboratories in Pasadena.

  In this report I have written my opinion without reserve. I would not write so freely for publication, of course.

  Sincerely yours,

  Linus Pauling

• AHP writes cheque to: Title Insurance and Trust Company amount $85 [Filed under LP Biographical: Box #4.014, Folder #2]
• Letter from Chas. L Beagle to LP RE: Asks LP if it could be arranged for his colleagues or chemistry classes to analyze and conduct chemical tests to show that their process of preserving rice polish so that it will remain sweet and fresh indefinitely while preserving the vitamins, mineral salts and vegetable fats. He does not have the money to pay a chemist for this to be done and thus is asking LP for any help he may offer. [LP's reply: April 8, 1938] [Filed under LP Correspondence: Box #37, Folder #37.5]
• Letter from Wheeler R. Davey to LP RE: Informs LP of the dinner, at the Raleigh Hotel, following the annual meeting of the Physics Committee of the NRC Conference on Electrical Insulation. Asks LP to please RSVP. [LP's reply: April 12, 1938] [Filed under LP Correspondence: Box #98, Folder #98.3]

• Letter from Arthur Hill to LP, RE: Hill says he is grateful to LP for the consideration, and that he does not want LP to make a hurried decision on such an important matter. [Filed under LP Safe Contents, Drawer 2, Folder 2.005.52]
• Letter from E. K. Wickman to LP RE: Wickman encloses a copy of the application of one of the candidates for a Commonwealth Fund Fellowship for 1938-1940. Asks LP for his opinion as to the Universities where he could most profitably pursue the course of work proposed in his application. [Filed under: L: Correspondence, Box #230, Folder #230.4]
• Letter from LP to Mr. Charles L. Beagle RE: LP regrets that it is impossible for them to carry on the work mentioned in his letter of April 7, 1938. [Filed under LP Correspondence: Box #37, Folder #37.5]
• Letter from LP to Mr. S. J. Worsley RE: LP thanks Worsley for inviting him to lecture at the University of London, however at this time LP regrets that he will be unable to accept the invitation. [Worsley's letter: March 8, 1938] [Filed under: W: Correspondence, Box #443, Folder #443.6]
• Letter from LP to Professor Robert A. Millikan, RE: Outlines the budget of the Division of Chemistry and Chemical Engineering for the coming years and explains which amounts might change form year to year. Asks Millikan to write a letter to him giving his opinion on the intention of CIT to support the work of the Division of Chemistry and Chemical Engineering before and after the expiration of the period covered by the Rockefeller Grant. [Filed under LP Personal Safe: Drawer 2, Folder 2.005, 5.5]
• Letter from LP to Robert A. Millikan, C. I. T. RE: LP outlines the future prospects of the Division of Chemistry and Chemical Engineering (which he feels are very good), partially in connection with the Sterling Professorship at Yale. [Filed under LP Biographical: Box #1.031, Folder #31.1]
• Letter from S. J. Worsley to LP RE: Invites LP to lecture at the University of London and provides a list of convenient dates in hopes that one might work for LP. [LP's reply: March 8, 1938] [Filed under: W: Correspondence, Box #443, Folder #443.6]

• AHP writes cheque to: Harold Unfried amount $3.80 [Filed under LP Biographical: Box #4.014, Folder #2]
• Letter from Arthur B. Lamb, Editor, Journal of the American Chemical Society RE: Invites LP to dinner while he is in Dallas for the A. C. S. Meeting. [LP's reply to Lamb April 13, 1938] [Filed under LP Science: Box #14.002, Folder #2.3]

• AHP writes cheque to: A. C. Vroman amount $36.88 [Filed under LP Biographical: Box #4.014, Folder #2]
• AHP writes cheque to: Adohr Milk Farms amount $28.17 [Filed under LP Biographical: Box #4.014, Folder #2]
• AHP writes cheque to: Bode's California Lake Market $59.57 [Filed under LP Biographical: Box #4.014, Folder #2]
• AHP writes cheque to: C. J. Gould amount $16.48 [Filed under LP Biographical: Box #4.014, Folder #2]
• AHP writes cheque to: F. C. Nash Company amount $7.56 [Filed under LP Biographical: Box #4.014, Folder #2]
• AHP writes cheque to: Fortner and Laud amount $14.14 [Filed under LP Biographical: Box #4.014, Folder #2]
• AHP writes cheque to: Hjalnar Johnson amount $7.41 [Filed under LP Biographical: Box #4.014, Folder #2]
• AHP writes cheque to: Nellie Durby amount $1.50 [Filed under LP Biographical: Box #4.014, Folder #2]
• AHP writes cheque to: Office of City Assessor amount $3.57 [Filed under LP Biographical: Box #4.014, Folder #2]
• AHP writes cheque to: Polytechnic Elementary School amount $50 [Filed under LP Biographical: Box #4.014, Folder #2]
• AHP writes cheque to: Southern California Gas Company amount $10.13 [Filed under LP Biographical: Box #4.014, Folder #2]
• AHP writes cheque to: Southern California Telephone Company amount $2.90 [Filed under LP Biographical: Box #4.014, Folder #2]
• AHP writes cheque to: Standard Oil Company of California amount $4.85 [Filed under LP Biographical: Box #4.014, Folder #2]
• AHP writes cheque to: Teresa Lytle amount $7.35 [Filed under LP Biographical: Box #4.014, Folder #2]
• AHP writes cheque to: Union Oil Company of California amount $1.98 [Filed under LP Biographical: Box #4.014, Folder #2]
• LP writes cheque to: American Association of University Professors amount $4 [Filed under LP Biographical: Box #4.014, Folder #2]
• LP writes cheque to: Williams & Wilkins amount $7 [Filed under LP Biographical: Box #4.014, Folder #2]
• LP writes cheque to: Yourselves only amount $300 [Filed under LP Biographical: Box #4.014, Folder #2]
• Letter from C. P. Gulick, President National Oil Products Company, Inc., to Dr. Balch RE: Asks to be put in contact with any groups or individuals who may be interested in doing chemical research on products thus, benefiting research and the oil company. [Balch's reply: April 18, 1938] [Filed under: G: Correspondence, Box #140, Folder #140.3]
• Letter from Denis L. Fox to LP RE: Invites LP to the Spring Conference of the Biochemical Conference. Provides information regarding the schedule etc. [Filed under: F: Individual Correspondence, Box #120, Folder #120.10]
• Letter from LP to Carl Niemann RE: LP apologizes that his letter has gone unanswered for so long. LP explains that during the first year he will not do much teaching. LP looks forward to his arrival and to meeting Mrs. Niemann. [Niemann's letter: February 20, 1938] [Filed under: N: Individual Correspondence, Box #277, Folder #277.5]
• Letter from LP to Dr. Harold C. Urey RE: LP will not be able to attend the meeting of the Committee on the Application of Mathematics to Chemistry, because he is not planning to come East this Spring. [Filed under: Urey, Harold: Reprints and Correspondence, Box #419, Folder #419.1]
• Letter from LP to Dr. S. Morrel, Mt. Sinai Hospital RE: LP arranges Morrel's Research Assistantship with Dr. Carl Niemann for the period of July 1, 1938 to June 30, 1939. [Morrel's reply to LP April 20, 1938] [Filed under LP Biographical: Box #1.031, Folder #31.1]
• Letter from LP to Mr. E. K. Wickman RE: LP believes that Mr. Keith James Laidler could carry out the course of study proposed in his application at Harvard University. [Filed under: L: Correspondence, Box #230, Folder #230.4]
• Letter from LP to Warren Weaver, Director, The Natural Sciences-The Rockefeller Foundation RE: Thanking LP for his report concerning the work of Dr. Wrinch. [LP's reply to Weaver April 18, 1938] [Filed under LP Science: Box #14.038, Folder #38.6]
• Letter to Lawrence O. Brockway to Brockway RE: promises to pay LP his heirs or assigns the amount of $300.00 with interest at 5 cents per year. [Filed under LP Correspondence: Box #31, Folder #31.11]

• AHP writes cheque to: Athenaeum amount $5.70 [Filed under LP Biographical: Box #4.014, Folder #2]
• AHP writes cheque to: State Treasurer amount $28.04 [Filed under LP Biographical: Box #4.014, Folder #2]
• AHP writes cheque to: State Treasurer amount $28.04 [Filed under LP Biographical: Box #4.014, Folder #2]
• Letter from LP to David Harker and Alexander Kossiakoff RE: Reports that the new paragraphs seem to take care of the points raised. [Filed under: H: Individual Correspondence, Box #151, Folder #151.10]
• Letter from LP to Dr. L. E. Sutton. [Filed under: S: Individual Correspondence, Box #370, Folder #370.8]

  April 12, 1938

  Dr. L. E. Sutton

  1, Eastchurch

  Iffley, Oxford, England

  Dear Sutton:

  I am astounded to note that your letter of the 9th of February remained unanswered this long. This may be due in part to the visit of Todd, who with his wife left on the Grand Canyon Limited just two hours ago on their way back to London, and in part to the first steps of moving into the new laboratory. I was interested to read about your dream and to put you in bettor shape for further dreaming, I am enclosing a clipping from the Los Angeles Times.

  Having got this far in the letter, I decided that the time had come to move from Astrophysics to Crellin so my secretary, Mrs. Shaffer, and I picked up some pencils, paper and the typewriter and made the move.

  I have a nice big laboratory in the north east corner on the first floor of Crellin, the situation being the same as in the Astrophysics Building. This laboratory is twenty feet square. It has two chemical desks and a hood and sink in one corner, a writing desk and table and a black board and a blue rug on the floor under the writing desk. Next door is a smaller room about ten by fifteen, containing a writing desk for me, for business, a desk for the secretary, and miscellanies. To the west is a large room about twenty by thirty, which will contain Weinbuam, crystal models, plotting tables etc. I do hope that you will come to Pasadena again on your next leave of absence from college.

  Hampson and Springall have been working very hard this spring and I think that they will finish up their work in fine shape. I heard from the Commonwealth Fund that a man named Laidler is applying for a fellowship. I would be glad to have any of your able men come here to work, even including those in organic chemistry, since we are developing our work in this direction.

  Brodkway has just sent me a copy of his paper on the phosphorus compounds. He seems to have been enjoying himself very much at Oxford.

  I am sorry that I am not coming to England this summer, and I hope that a European trip can be arranged before too many years have gone by.

  With very best regards, I am

  Sincerely yours,

  LP/bcs

• Letter from LP to Dr. V. Ipatieff RE: Asks Ipatieff if he could send a supply of methyl cyclobutane. LP would like to carry on the electron diffraction study of this substance. [Filed under: I: Correspondence, Box #185, Folder #185.3]
• Letter from LP to Professor J. W. Williams RE: LP thinks it will be unlikely that he will have the opportunity to come to the Milwaukee meeting of the American Chemical Society. [Filed under: W: Individual Correspondence, Box #438, Folder #438.1]
• Letter from LP to Professor R. L. Shriner RE: LP asks if he could obtain a sample of dimethyldiketopiperazine from him. [Filed under: S: Correspondence, Box #377, Folder #377.8]
• Letter from LP to Professor Wheeler P. Davey RE: LP sends his regrets as he will be unable to attend the meeting of the Physics Committee of the N. R. C. Conference on Electrical Insulation. [Davey's Letter: April 7, 1938] [Filed under LP Correspondence: Box #98, Folder #98.3]

• Letter from Akademische Verlagsgesellschaft m.b.H. to LP: postcard saying they still haven't heard from LP about the textbooks and are looking forward to hearing from him soon. [Filed under LP Correspondence: Box #12, Folder #12.4]
• Letter from Everett P. Partridge to LP RE: Writes to LP concerning the substance of Calgon in which LP showed interest in through his letter of April 6. [Filed under: LP Correspondence, Box #312, Folder #312.3]
• Letter from G. N. Lewis to LP RE: Asks LP if he knows whether pictures similar to those in White's book on spectroscopy are available for simple molecules. Asks LP about his new instructor in organic chemistry. [Filed under: G. N. Lewis Correspondence, Box #216, Folder #216.1]
• Letter from Hans T. Clarke to LP RE: Informs LP of the availability of Dr. Jacinto Steinhardt whose work is very similar to the work LP is developing. Currently Cohn holds a Rockefeller Foundation Fellowship. [Filed under LP Correspondence: Box #66, Folder #66.4]
• Letter from LP to Arthur B. Lamb, Editor, Journal of the American Chemical Society RE: LP regrets that he will not be in attendance at the Dallas meeting and therefore cannot have dinner with Lamb. [Lamb's letter to LP April 9, 1938] [Filed under LP Science: Box #14.002, Folder #2.3]
• Letter from LP to Arthur B. Lamb, Editor, Journal of the American Chemical Society RE: LP submits for publication the enclosed paper by L. Brockway, "The Internuclear Distance in the Fluorine Molecule." [Filed under LP Science: Box #14.002, Folder #2.3]
• Letter from LP to Dr. A. R. Todd RE: Is looking forward to Todd and his wife's stay in Pasadena and is looking forward to the possibility of his permanent return. LP hopes that he will be able to attend the dedication ceremony for the new Crellin Laboratory on May 13th. [Filed under: T: Individual Correspondence, Box #407, Folder #407.6]
• Letter from LP to Dr. L. O. Brockway RE: LP encloses a bank draft equivalent to $300.00 along with Sidgwick's receipt and hopes that it will arrive safely. Has not had time to look through the manuscript on phosphorus but will have Beach correct the proofs once they are complete. Has also not read the fluorine manuscript but thinks it should be published. [Filed under LP Correspondence: Box #31, Folder #31.11]
• Letter from LP to John Y. Beach, Princeton University, RE: is making suggested corrections on the phosphorus paper and asks for reprints to be sent to him and to Brockway. [Filed under LP Correspondence: Box #27, Folder #27.1]

• AHP writes cheque to: Harold Unfried amount $3.20 [Filed under LP Biographical: Box #4.014, Folder #2]
• AHP writes cheque to: Nellie Durby amount $1.30 [Filed under LP Biographical: Box #4.014, Folder #2]
• Letter from E. K. Wickman to LP RE: Thanks LP for his letter of the 11th and his advice regarding Laidler was most helpful. [Filed under: L: Correspondence, Box #230, Folder #230.4]
• Letter from LP to Mr. Curtis G. Benjamin RE: LP thanks him for sending the copy of Stillwell's "Crystal Chemistry." LP looks forward to seeing Warren's book when it appears. [Filed under LP Correspondence: Box #253, Folder #253.1]
• Letter from LP to President Hamilton Holt, Rollins College RE: LP regrets that in answer to his letter to Professor Millikan that they are unable to recommend a man for Instructorship in Organic at Rollins. [Filed under: H: Correspondence, Box #165, Folder #165.3]
• Letter from Otto Redlich to LP RE: Redlich thanks LP for his letter and kind invitation. He hopes to see LP either on Wednesday the 19th or Monday the 24th. [Filed under: R: Correspondence, Box #340, Folder #340.3]
• Letter from Robert T. Ross to LP RE: Asks for LP's opinion regarding a young man who would prefer to attend Stanford University, as his two older brothers have, but would like to carry on graduate work at CIT. Asks LP if it would be easier for him to attend CIT right away, instead of having to transfer. [Filed under LP Correspondence: Box #340, Folder #340.3]

• Letter from LP to Miss Lillian Kudner, Editorial Secretary, RE: LP encloses a list of minor corrections to be made in the "Introduction to Quantum Mechanics." [Filed under LP Books: Box 1935b, Folder 1935b.1]
• Letter from LP to President Hamilton Holt RE: LP reports that he has just learned that Mr. Fred J. Clark who has served as Research assistant in Bio-chemistry and Biology department is interested in the teaching position at Rollins. [Filed under: H: Correspondence, Box #165, Folder #165.3]
• Letter from Perrin C. Galpin to LP RE: Tells LP that Dr. Henri Brasseur of the University of Liege has been appointed as C. R. B. Advanced Fellow for this year. Brasseur is very anxious to work with LP so Galpin wonders if he could work under his direction for several months. [Filed under LP Correspondence: Box #37, Folder #37.5]

• Letter from LP to Dr. Otto Redlich RE: LP is glad that he will be able to visit CIT and LP has scheduled him to speak on Wednesday, April 19, at 4:45 pm. [Filed under: R: Correspondence, Box #340, Folder #340.3]

• Letter from Allan C. Balch to Dr. Robert A. Millikan RE: Encloses a letter from the National Oil Products Company. [Filed under: G: Correspondence, Box #140, Folder #140.3]
• Letter from Dr. Allan C. Balch, President CIT, to C. P. Gulick RE: Explains that he is forwarding his letter to Dr. Robert A. Millikan of CIT. [Gulick's letter: April 11, 1938] [Filed under: G: Correspondence, Box #140, Folder #140.3]
• Letter from Edward C. Lingafelter to LP RE: Is sending LP a manuscript of the crystal structure of the mercuric ammonobasic chloride and would like to have LP criticize it before it is sent in. Asks LP where he thinks the paper should be sent. [Filed under: L: Correspondence, Box #230, Folder #230.4]
• Letter from George Scatchard to LP RE: Is very sorry to learn that LP will not be able to attend the Symposium at Brown. [LP's response: April 26, 1938] [Filed under: S: Correspondence, Box #377, Folder #377.8]
• Letter from LP to Dr. Robert T. Ross RE: LP believes that the chemistry department at Stanford is a good one, and they would be very happy to consider graduates from Stanford for graduate work at CIT. [Filed under: R: Correspondence, Box #340, Folder #340.3]
• Letter from LP to H. T. Clarke RE: Thanks Clarke for the letter concerning Dr. Jacinto Steinhardt. However, is uncertain whether it will be possible for him to continue work in Pasadena but ensures that careful consideration will be given to the suggestion. [Clarke's letter: April 13, 1938] [Filed under LP Correspondence: Box #66, Folder #66.4]
• Letter from LP to Mr. Galpin RE: LP would be very glad to have Dr. Henri Brasseur stay and work at the Institute for as long as possible. [Filed under LP Correspondence: Box #37, Folder #37.5]
• Letter from LP to Warren Weaver, Director, The Natural Sciences-The Rockefeller Foundation RE: LP reminds Weaver that his report about Wrinch was written with complete candor. He has received a letter from Hans Clarke suggesting that Dr. Jacinto Steinhardt might fit well at C. I. T. but LP would only be able to accept him if his Rockefeller Fellowship were continued, as their plans for the following year are set. [Weaver's letter to LP April 11, 1938; Reply April 28, 1938] [Filed under LP Science: Box #14.038, Folder #38.6]

• Letter from LP to Dr. Henry Gilman RE: Suggests a few grammatical changes be made to the book but is very happy that it has been selling well and congratulates Gilman on his success. [Filed under: F: Correspondence, Box #136, Folder #136.11]
• Letter from LP to Professor Gilbert N. Lewis RE: LP writes that he does not know of any pictures analogous, for molecules to those of White's for atoms. LP reports that they are adding two or three more men to the organic chemistry department staff. [Filed under G. N. Lewis Correspondence, Box #216, Folder #216.1]
• Manuscript Notes: Protein Structure and Immunological Reactions, Location Unknown, ["Second meeting of the protein seminar"] [LP Speeches 1938s.4]

• Letter from Hamilton Holt to LP RE: Thanks LP for his letter regarding Mr. Fred J. Clark but regrets to say that since his last letter the professor has decided to stay and thus they will no longer need anyone else. [Filed under: H: Correspondence, Box #165, Folder #165.3]
• Letter from LP to AHP. [Filed under LP Safe: Box #1.013, Folder #13.77]

  [on stationery from California institute of Technology]

  April 20, 1938

  Dearest sweet little wife:

  I love you, darling, and I'm happy to be your husband. You are the sweetest girl in the world. I like to read the letters that you wrote to me at Cornell.

  Today I worked on my book for a while (correcting old chapters). I gave my lecture this morning, and listened to Rabinowitsch this afternoon. Dr Lacey asked if I thought that Swift should revise Noyes "Qualitative Analysis". It still earns (for the Chem. Div. now) about $1000 a year in royalties.

  I am looking forward to going on a nice ride with my little love tomorrow. Now I am going to work on my book.

  Be happy, my darling little wife.

  Your own

  Paddy

• Letter from LP to Dr. Herman Pines RE: LP would be glad to have the substances mentioned in the letter of April 26th for electron diffraction investigations. [Filed under: LP Correspondence, Box #312, Folder #312.3]
• Letter from Samuel A. Morrel, Mt. Sinai Hospital to LP RE: Reply to LP's letter concerning his assistantship with Dr. Niemann. He will arrive in Pasadena in August. [LP's letter to Morrel April 11, 1938] [Filed under LP Biographical: Box #1.031, Folder #31.1]

• Letter from Austin Patterson to Professor Noyes RE: Discusses with Noyes his proposed letter to the Monographs Board from Dr. Capell. [Filed under: N: Individual Correspondence, Box #279, Folder #279.4]
• Letter from Bright Wilson, Jr. to LP RE: Wilson encloses a list of corrections which he has sent to McGraw-Hill, he recommends that LP read them over quickly because if he does not agree with them, he must write the company soon. Inquires as to how LP's books are coming and reports that his is not making much progress. [Filed under: W: Individual Correspondence, Box #438, Folder #438.5]
• Letter from John T. Edsall to LP RE: Asks LP if it would be possible for him to work in the laboratory during the academic year 1939-1940. Edsall explains that he is taking a leave of absence and would like to use is knowledge of modern quantum and valence theory and how this might be used with amino acids, peptides and proteins. [LP's reply: April 26, 1938] [Filed under LP Correspondence: Box #106, Folder #106.5]

• Letter from Harry L. Heckel to LP RE: Asks LP if it is possible to apply for a fellowship at CIT. [Filed under: H: Correspondence, Box #165, Folder #165.3]
• Letter from LP to Dr. William N. Lacey RE: Suggests that he write to find out what the National Oil Products Company, Inc., is interested in. [Filed under: G: Correspondence, Box #140, Folder #140.3]
• Research Notebook: "Proteins", Spring 1938. [includes notes on complementarity of antigens and antibodies] [Filed under LP Science: Box #6.001, Folder #1.3]

• AHP writes cheque to: Wesley Unfried amount $4.40 [Filed under LP Biographical: Box #4.014, Folder #2]
• Letter from C. F. Bugbee to LP RE: LP encloses his paper "Light and Quantum Effects" in which Bugbee had requested. [Filed under LP Correspondence: Box #37, Folder #37.5]
• Letter from Dr. R. C. Evans to LP RE: Asks LP's permission to include a figure from on of his paper's in a book on Crystal Chemistry. [LP's reply: May 12, 1938] [Filed under LP Correspondence: Box #112, Folder #112.5]
• Letter from G. N. Lewis to LP RE: Lewis was very interested to learn that Dick is going to work at CIT. [Filed under: G. N. Lewis Correspondence, Box #216, Folder #216.1]
• Letter from LP to Mr. Edward C. Lingafelter RE: LP was interested to read his manuscript on mercuric ammonobasic chloride and is returning it, (enclosed). LP offers many suggestions before its publication.
• Reprint: Astbury, W.T., et al. "X-Ray Study of Thymonucleic Acid", Nature, 141, 747, April 23, 1938. [Filed under LP Science: Box #9.001, Folder #1.1]

• Note from Ralph James to LP RE: Asks LP for advice regarding scholarships and student self help at CIT. [Filed under: J: Correspondence, Box #192, Folder #192.5]

• AHP writes cheque to: Caltech Drama Club amount $1.50 [Filed under LP Biographical: Box #4.014, Folder #2]
• Letter from C. R. Kinney to LP RE: Asks LP if he would like a sample of the substance (C₆H₅NBCl)₃ to work on electron diffraction studies with. [Filed under: K: Correspondence, Box #200, Folder #200.3]
• Letter from Herman Pines to LP RE: Pines is passing on a letter from Professor Ipatieff. They will be glad to sent the chemicals he asked for as soon as they are available. [Filed under: LP Correspondence, Box #312, Folder #312.3]
• Letter from LP to Akedemische Verlagagesellschaft M. B. H. RE: will not be able to place an order with them due to the cost of the copies of "Struktur-Bericht." [Filed under LP Correspondence: Box #12, Folder #12.4]
• Letter from LP to C. F. Bugbee RE: Is returning LP's paper "Light and Quantum Effects". [Filed under LP Correspondence: Box #35, Folder #37.5]
• Letter from LP to Dr. Everett P. Partridge RE: LP thanks Partridge for his letter and the sample of flake Calgon. LP hopes to prepare some crystalline hexametaphosphate which can be treated by the x-ray method. [Filed under: LP Correspondence, Box #312, Folder #312.3]
• Letter from LP to Dr. John T. Edsall RE: Is glad to hear that Edsall would like to spend the year doing research in the lab and assures him that facilities would be provided to him. [Filed under LP Correspondence: Box #106, Folder #106.5]
• Letter from LP to Mr. Harry L. Heckel RE: LP regrets to say that the appointments for fellowships for the coming year have already been made. [Filed under: H: Correspondence, Box #165, Folder #165.3]
• Letter from LP to Professor George Scatchard RE: LP thinks it would be a good idea to have a Symposium on the Determination of Structure by X-ray and Electron Diffraction" at the Baltimore meeting. Suggests that Brockway, who will be in Ann Arbor, be in charge of the arrangements. [Filed under: S: Correspondence, Box #377, Folder #377.8]
• Letter from LP to Professor Millikan RE: LP asks for Millikan's suggestions on the dedication ceremony of the Crellin Laboratory. [Filed under: LP Correspondence, Box #247, Folder #247.1]
• Letter from LP to Professor Victor K. LaMer RE: LP looks forward to his visit during early May and informs him that their school closes in June. [Filed under: L: Individual Correspondence, Box #212, Folder #212.4]
• Letter from R. L. Shriner to LP RE: Informs LP that he will be mailing a sample of dimethyldiketopiperazine but regrets to say that he does not have any of the tetramethyl derivative. [Filed under: S: Correspondence, Box #377, Folder #377.8]
• Letter from Richard C. Tolman to LP RE: Informing LP that the Association of American Universities has before it three institutions which have been nominated for membership including: Bryn Mawr College, Iowa State College and the University of Rochester. [Filed under: T: Individual Correspondence, Box #407, Folder #407.7]
• Note from A. R. Todd to LP RE: Informing LP that he has received the detailed job description from Millikan, he will do his best to make his decision to accept the job or not as soon as possible. [Todd's next letter: May 30, 1938] [Filed under: T: Individual Correspondence, Box #407, Folder #407.6]

• Letter from G. N. Lewis to LP RE: Thanks LP for the drawing of the hydrogen molecule and would like to see the picture of the water molecule if possible. [Filed under: G. N. Lewis Correspondence, Box #216, Folder #216.1]
• Letter from Paul Nicholas Leech, Secretary, Council of Pharmacy and Chemistry to E. J. Crane, Editor, Chemical Abstracts cc: Members of the Committee on Nomenclature and Pronunciation incl. LP RE: The Council requests that the Committee on Nomenclature review the status of "Cevitamic Acid" and "Ascorbic Acid" nomenclature and not establish a precedent for therapeutically suggestive names. [Filed under LP Science: Box #14.008, Folder #8.14]
• Letter from William N. Lacey to Mr. C. P. Gulick RE: Explains that his letter of April 11th has been referred to him and speaks of what CIT is now doing for research. Suggests that if he is interested to please contact LP , Head of the Division of Chemistry and Chemical Engineering. [Gulick's original letter: April 11, 1938] [Filed under: G: Correspondence, Box #140, Folder #140.3]

• AHP writes cheque to: Alice Epstein amount $20 [Filed under LP Biographical: Box #4.014, Folder #2]
• AHP writes cheque to: Teresa Lytle amount $2.80 [Filed under LP Biographical: Box #4.014, Folder #2]
• Letter from LP to Mr. James RE: Inform James that there are some scholarships for undergraduate students at CIT and recommends that he not try to work and go to school at the same time. [Filed under: J: Correspondence, Box #192, Folder #192.5]
• Letter from the Secretary to Warren Weaver, Director, The Natural Sciences-The Rockefeller Foundation to LP RE: Acknowledging receipt of LP's letter of April 18 in Weaver's absence. [LP's letter to Weaver April 18, 1938] [Filed under LP Science: Box #14.038, Folder #38.6]

• AHP writes cheque to: Harold Unfried amount $2.80 [Filed under LP Biographical: Box #4.014, Folder #2]
• Letter from LP to Dr. C. R. Kinney RE: LP is glad to hear that his paper on boiling point and structure is progressing well. Mention that he would be glad to prepare electron diffraction photographs of the substance mentioned in the last letter. [Filed under: K: Correspondence, Box #200, Folder #200.3]
• Letter from LP to Professor G. N. Lewis. [Filed under: G. N. Lewis Correspondence, Box #216, Folder #216.1]

  April 29, 1938

  Professor Gilbert N. Lewis

  Department of Chemistry

  University of California

  Berkeley, California

  Dear Professor Lewis:

  I am enclosing a photograph of my drawing of the water molecule, and I hope that you can make use of it. The drawing is based on the calculations made by Coolidge. The scale is given by the O—H internuclear distance of 1.96 Å.

  Ava Helen and I have been hoping to come to Berkeley for a visit but I am afraid that it must now be put off until June or July. With best regards, I am

  Sincerely yours,

  Linus Pauling

  LP/bcs

• Letter from LP to Professor R. L. Shriner RE: Thanking him for the samples of dimethyldiketopiperazine and dibenzyldiketopiperazino. He looks forward to determining the crystal structure of the dimethyl compound. [Filed under: S: Correspondence, Box #377, Folder #377.8]
• Letter from Mrs. Helen Eaves to LP RE: Informing LP of two house listings if the one near East Foot Hill isn't what he was looking for. [Filed under LP Correspondence: Box #112, Folder #112.5]

• Letter from Henry Gilman to LP RE: Explains to LP that on his way back from Dallas he stopped by Fisk University. While visiting they discussed the possibility of taking on a "negro." He goes on to ask LP about his opinion in the matter and if he has heard anything about the work of James S. LuValle. [LP's reply: May 3, 1938] [Filed under: F: Correspondence, Box #136, Folder #136.11]