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• Newspaper Clipping: "Personalities in Science," Scientific American No. 158, RE: Describes LP's success in his chemistry work and provides a short biography of his life. [Filed under LP Newspaper Clippings: 1938n.1] [Also filed under LP Biographical: Box #6.003, Folder #3.4]
• Research Notebook: "Proteins", Spring 1938. [includes notes on complementarity of antigens and antibodies] [Filed under LP Science: Box #6.001, Folder #1.3]

• Letter from LP to Professor Ernest Watson RE: Recommends that Mr. Bruce Hicks' fellowship be renewed. [Filed under: H: Correspondence, Box #165, Folder #165.3]
• Letter from President Hamilton Holt to Dr. Robert A. Millikan RE: Asks Millikan to recommend a young man to become an instructor in the department of organic chemistry. [Filed under: H: Correspondence, Box #165, Folder #165.3]
• Manuscript, Correspondence: The Electron Theory of Valence, Jubilee Program, Pomona College, Pomona, California. [LP Speeches 1938s.2]

• Letter from Kunj Behari Lal to LP RE: Asks LP for several reprints to help him in his own studies. [Filed under: L: Correspondence, Box #230, Folder #230.4]
• Letter from LP to Dr. Edwin R. Buchman RE: LP asks Buchman if he has a copy of the pamphlet, "The Story of Vitamin B1" from Merck and if so if it could be lent to him. [Filed under LP Correspondence: Box #33, Folder #33.2]
• Letter from LP to Mr. Kunj Behari Lal RE: LP is sending under separate cover the reprints that Lal requested however, LP says that if some of them are missing it is because the supply has been exhausted. [Filed under: L: Correspondence, Box #230, Folder #230.4]
• Letter from LP to Professor George L. Clark RE: Recommends Dr. Lindsay Helmholz for appointment into the Chemistry Department at the University of Illinois. [Filed under: H: Individual Correspondence, Box #156, Folder #156.2]
• Letter from LP to Professor Roger Adams RE: Asks if Dr. Lindsay Helmolz will still be under consideration for appointment in the chemistry department at University of Illinois. LP would like to know if he will need to look for another man to replace him. [Filed under LP Correspondence: Box #156, Folder #156.2]
• Letter from Warren Weaver, Director of the Natural Sciences, The Rockefeller Foundation to LP RE: Answering LP's questions concerning the budget for 1938-39 for bio-organic chemistry. [LP's letter to Weaver February 23, 1938] [Filed under LP Science: Box #14.037, Folder #37.8]
• Letter from Warren Weaver, Director of the Natural Sciences, The Rockefeller Foundation to LP. [Filed under LP Science: Box #14.037, Folder #37.8]

  March 2, 1938

  Dear Linus:

  This is in answer to your more personal letter of February 23rd. I have noticed your comments about Dr. Wrinch, which do not particularly surprise me. I will surely be much interested in the further report on this situation which you propose to send to me soon. I rather hope that you will feel justified in preparing an exposition of your own ideas of protein structure. One has, of course, to recognize the risks involved in a paper which must necessarily be somewhat speculative in nature; but it would certainly seem to me that the very substantial amount of rigorous and experimental publication which you have to your credit would, without question, bear the burden of a little speculation.

  I am sorry that I have no useful information or advice to offer about Dr. Corey. It just happens that we have had no contact with him and have no information concerning his situation at the Rockefeller Institute.

  When I was recently in England I talked with several men concerning a series of shifts of personnel in the organic chemistry field which are imminent there. The post of organic chemistry at King’s College has already been filled by the appointment of Bennett of Sheffield. There is another, and presumably a somewhat more important post in organic chemistry vacant at Imperial College; but there is every reasonable expectation that Heilbron will be named to this post and that he will accept. I have the impression that there is a good probability of your getting Todd. I think that Robinson has urged him to accept a good offer from Pasadena. And I think that his father-in-law, Sir Henry Dale, has similarly advised him. I rather suspect that both of these important advisers have in the back of their minds the possibility that, after he has developed somewhat further, they might hope to call him back to England for a really important post. But I have so great a confidence in the Institute, in the scientific group there, and, perhaps I should add, in the California climate, that I would be willing to trust your capacity to hold Todd, if you can once get him.

  Very cordially,

  Warren

• AHP writes cheque to: Lola Cook amount $50 [Filed under LP Biographical: Box #4.014, Folder #2]
• Letter from J. E. Coates to LP RE: Is sorry to hear that LP will be unable to attend the meeting in August and hopes that he will be able to come in the near future. [Filed under LP Correspondence: Box #37, Folder #37.5]
• Letter from LP to Dr. A. W. Laubengayer RE: LP encloses a draft of a small paper on digermane and trigermane. [Filed under: L: Correspondence, Box #230, Folder #230.4]
• Letter from LP to Professor W. A. Noyes, JR RE: LP was pleased to learn that he accepted the Professorship at the University of Rochester. LP speaks of Dr. Lindsay Helmholz whom he thinks should be considered for research instructorship in chemistry. [Noyes' reply: March 14, 1938] [Filed under: N: Individual Correspondence, Box #279, Folder #279.5]
• Letter from LP to Professor W. F. Coover RE: Thanks Coover for writing about the opening for an Assistant Professor at Iowa State University. LP along with others at CIT are happy to recommend K. J. Palmer for this positions. [Coover's letter: February 17, 1938] [Filed under: LP Correspondence, Box #304, Folder #304.3]

• AHP writes cheque to: Nellie Durby amount $3 [Filed under LP Biographical: Box #4.014, Folder #2]
• Letter from Henri Brasseur to LP RE: Asks if it is possible for his to spend June and July with LP at his lab in Pasadena because he just recently was awarded a new Advanced Fellowship of the C.R.B. Educational Foundation. [LP's reply: March 18, 1939] [Filed under LP Correspondence: Box #31, Folder #31.3]

• AHP writes cheque to: Katharine Putnam Crane amount $85 [Filed under LP Biographical: Box #4.014, Folder #2]
• LP Research Notebooks, RNB 11 RE: Notes re: x-ray diffraction experiments on In(CH3)3
• Note from E. Rabinowitch to LP RE: Rabinowitch has planned to be in Stanford beginning in April and hopes to visit Pasadena towards the end of April. [Filed under: R: Individual Correspondence, Box #326, Folder #326.1]

• AHP writes cheque to: Lucile Untereiner amount $2.50 [Filed under LP Biographical: Box #4.014, Folder #2]
• Letter from Dwight Carpenter to LP RE: Carpenter will not have enough money to buy several quartz absorption cells for use in the ultra-violet. Asks for LP's support in applying for a grant in aid from the American Philosophical Society to cover the costs. [LP's reply: April 10, 1938] [Filed under LP Correspondence: Box #57, Folder #57.13]
• Letter from Edward O. Ohlmann to LP RE: Asks LP if it would be possible to obtain any financial assistance for the school year of 1938-39. Under special circumstances he applied late and now is not eligible for fellowships or assistantships. [LP's reply: March 14, 1938] [Filed under: O: Correspondence, Box #300, Folder #300.2]
• Manuscript, Correspondence: The Resonance of Molecules among Several Valence Bond Structures, Jubilee Program, Pomona College, Pomona, California. [LP Speeches 1938s.2]

• AHP writes cheque to: Athenaeum amount $12.30 [Filed under LP Biographical: Box #4.014, Folder #2]
• AHP writes cheque to: City of Pasadena amount $8.13 [Filed under LP Biographical: Box #4.014, Folder #2]
• AHP writes cheque to: Dr. H. A. Whipple amount $4 [Filed under LP Biographical: Box #4.014, Folder #2]
• AHP writes cheque to: Southern California Gas Company amount $13.28 [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]
• Letter from J. N. Mrgudich to LP RE: Certifying that his letter of March 2nd to Dr. Clark has arrived to his office. Due to Dr. Clark's sabbatical leave, LP's letter will be referred to Dr. Adams. [Filed under: H: Individual Correspondence, Box #156, Folder #156.2]

• AHP writes cheque to: Adohr Milk Farms amount $25.20 [Filed under LP Biographical: Box #4.014, Folder #2]
• AHP writes cheque to: Collector of Internal Revenue amount $23.32 [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]
• LP writes cheque to: Collector of Internal Revenue amount $23.32 [Filed under LP Biographical: Box #4.014, Folder #2]
• Letter from G. Schwarzenbach, The Rockefeller Institute for Medical Research to LP RE: Schwarzenbach is delighted that LP has consented to his plan to finish his Fellowship term at C. I. T. and will begin work in his laboratory May 1, 1938. [LP's letter to Schwarzenbach February 24, 1938] [Filed under LP Science: Box #14.037, Folder #37.6]
• Letter from L. O. Malowan to LP RE: Thanks LP for his previous letter and informs him that he did send Dr. Morgan his application. [Malowan's first letter: [February 19, 1938] [LP's last letter: February 23, 1938] [Filed under: M: Correspondence, Box #255, Folder #255.5]
• Letter from LP to Dr. D. C. Carpenter RE: LP is glad to write a letter concerning the grant from the American Philosophical Society. [Carpenter's letter: March 8, 1938] [Filed under LP Correspondence: Box #57, Folder #57.13]
• Letter from LP to Dr. E. Rabinowitch RE: LP looks forward to seeing Rabinowitch in April and would be pleased if he spoke before the Chemistry Department at CIT. [Rabinowitch's letter: March 6, 1938] [Filed under: R: Invidia Correspondence, Box #326, Folder #326.1]
• Letter from LP to Dr. Robert Emerson RE: LP informs Emerson that he has written to Rabinowitch and has asked him to speak at CIT, if he desires. [Emerson's letter: February 26, 1938] [Filed under: R: Individual Correspondence, Box #326, Folder #326.1]
• Letter from LP to Professor Roscoe G. Dickinson. [Filed under LP Correspondence: Box #94, Folder #94.5]

  March 10, 1938

  Professor Roscoe G. Dickinson

  C.I.T.

  Dear Roscoe:

  I have written to Rabinowitch in answer-to a letter from him suggesting that he talk here about April 13th on the "Kinetics of Free Atoms", and saying that we would put him up in the Athenaeum during his stay.

  Sincerely yours,

  Linus Pauling

  LP/bcs

• Manuscript, Correspondence: The Structural Chemistry of Blood, Jubilee Program, Pomona College, Pomona, California. [LP Speeches 1938s.2]

• AHP writes cheque to: Wesley Unfried amount $1.70 [Filed under LP Biographical: Box #4.014, Folder #2]
• Letter from Steward J. Lloyd to LP RE: Informs him that he is looking for a an Instructor in Physical Chemistry and asks for any applications they might have available. [Filed under: N: Correspondence, Box #287, Folder #287.5]
• Letter from W. F. Coover to LP RE: Asks LP to have Mr. Palmer send a copy of his transcripts, undergraduate and graduate, and on more letter of recommendation, to be reviewed during the application process. [LP's reply: March 16, 1938] [Filed under: LP Correspondence, Box #304, Folder #304.3]
• Note from P. Nilakantan to LP RE: Writes to LP to discuss the significant difference between NO3 and CO3 groups perhaps due to the electrostatic fields in the crystal ions. [Nilakantan's next letter: November 23, 1938] [Filed under: N: Correspondence, Box #287, Folder #287.5]

• Letter from LP to Mr. Edward O. Ohlmann RE: LP sends a copy of the 1938 catalog but regrets to say that there are no other appointments of graduate students to be made for the coming year. [Ohlmann's letter: March 8, 1938] [Filed under: O: Correspondence, Box #300, Folder #300.2]
• Letter from LP to Professor Charles J. Robinson RE: Recommending that Robinson consider Mr. Norman Elliott for appointment as Assistant Professor at Pomona College. [Filed under LP Correspondence: Box #112, Folder #112.5]
• Letter from W. A. Noyes, Jr. To LP RE: Thanks LP for his letter of March 4th. Although he has heard many good things about Dr. Helmholz, he would be unable to add him to the staff because of the salary he would require. [LP's letter: March 4, 1938] [Filed under: N: Individual Correspondence, Box #279, Folder #279.5]
• Note from Jack Sherman to LP RE: Sherman encloses a letter which Professor Fulton had sent to him, but has written back, telling him that he is no longer interested in an instructorship in the department of chemistry. [LP's reply: March 23, 1938] [Filed under: S: Correspondence, Box #377, Folder #377.8]

• Individual Income Tax Return for Calendar Year 1937 [Filed under LP Biographical: Box #4.001, Folder #1.1]

• LP writes cheque to: The MacMillan Company amount $1.40 [Filed under LP Biographical: Box #4.014, Folder #2]
• Letter from LP to Dr. E. R. Lassettre RE: LP asks how he is getting along with his work at Columbus and suggests that he complete his requirements for his Ph. D. Before long. LP reports that he will be moving into the Crellin Laboratory next week. [Filed under: L: Correspondence, Box #230, Folder #230.4]
• Letter from LP to Dr. G. A. Linhart RE: After investigating the nature of the Noyes Fellowships, LP has found that they are planned to be awarded for one or two years to young men who have just completed their Doctorate work. Because of these requirements LP regrets that it will be impossible for such a fellowship to awarded to Linhart. [Filed under: L: Correspondence, Box #230, Folder #230.4]
• Letter from LP to Dr. Irving Langmuir RE: LP asks for reprints of his recent papers regarding the structure of proteins. [Filed under: L: Individual Correspondence, Box #212, Folder #212.9]
• Letter from LP to Dr. John H. Northrop RE: LP asks for reprints of his recent papers regarding the structure of proteins. [Filed under: N: Individual Correspondence, Box #277, Folder #277.14]
• Letter from LP to Dr. Karl Landsteiner. [Filed under: L: Individual Correspondence, Box #212, Folder #212.7]

  March 16, 1938

  Dr. K. Landsteiner

  The Rockefeller Institute for

  Medical Research

  New York, N. Y.

  Dear Dr. Landsteiner:

  Since returning to Pasadena I have been too busy with various matters to spend much time thinking about the structure of proteins. I am planning to begin work on this problem soon, however, and I would be grateful if you could let me have copies of reprints of your later papers, especially those not discussed in your book.

  I hope that you arc considering the possibility if coming to Pasadena to work in our laboratories after you retire at the Rockefeller Institute, and that you will discuss with me later the facilities which you would need in order to carry on your work satisfactorily.

  With very best regards, I am

  Sincerely yours,

  Linus Pauling

  LP/bcs

• Letter from LP to Mr. K. J. Palmer RE: LP informs Palmer that Coover has asked that he write to him in connection with his recommendation of Palmer for the Assistant Professorship in the chemistry department. [Filed under: LP Correspondence, Box #304, Folder #304.3]
• Letter from LP to Professor Richard C. Tolman RE: Explaining that the Graduate Committee of the Divisions of Chemistry and Chemical Engineering recommends that appointment be made to those men listed on the enclosed page. [Filed under: T: Individual Correspondence, Box #407, Folder #407.7]
• Letter from LP to Professor Richard C. Tolman RE: Reminds Tolman of the request of the Division of Chemistry and Chemical Engineering to the Executive Council for the construction of two chemical desks in one hood. [Filed under: T: Individual Correspondence, Box #407, Folder #407.7]
• Letter from LP to Professor Roscoe G. Dickinson RE: Asks Dickinson to write a letter to Dr. W. F. Coover who has requested a letter of recommendation for Palmer for the position as Assistant Professor in the chemistry department. [Filed under LP Correspondence: Box #94, Folder #94.5]
• Letter from LP to Professor W. F. Coover RE: LP has asked Mr. Palmer to write directly to him in connection with the position and to send transcripts of his record. [Coover's letter: March 12, 1938] [Filed under: LP Correspondence, Box #304, Folder #304.3]

• Letter from D. C. Carpenter to LP RE: Is sending the blank application from the American Philosophical Society for LP to fill out. Resume enclosed. [Filed under LP Correspondence: Box #57, Folder #57.13]
• Letter from LP to Arthur B. Lamb, Editor, Journal of the American Chemical Society RE: LP recommends that the Note or Communication on "The Surface Tension-Viscosity Relation" by C. A. Buehelr be not accepted for publication. [Filed under LP Science: Box #14.002, Folder #2.3]
• Letter from LP to Dr. E. W. Hughes RE: Informs Hughes that the box of journals have arrived and thanks him for sending them. Explains that Shaffer was married two weeks ago and is now preparing for a Ph.D. candidacy examination. Is interested to learn what the Lalor people decide about his application. [Filed under: H: Individual Correspondence, Box #163, Folder #163.1]
• Letter from LP to Dr. Henri Brasseur RE: is looking forward to having Brasseur spend June and July with him in Pasadena. [Brasseur's letter: March 5, 1938] [Filed under LP Correspondence: Box #31, Folder #31.3]
• Letter from W. A. Noyes to LP RE: Discusses with the Board several issues concerning publications of monographs, particularly those by Henry Gilman, Dr. MacInnes and Mr. Turner. [Filed under: N: Individual Correspondence, Box #279, Folder #279.4]

• AHP writes cheque to: Wesley Unfried amount $3.20 [Filed under LP Biographical: Box #4.014, Folder #2]
• Letter from Alden H. Emery to LP RE: Emery tells LP that Dr. E. Rabinowitch will be in California during April and wonders if LP would like to have speak about photochemistry at this time. [LP's reply: March 23, 1938] [Filed under: R: Individual correspondence, Box #326, Folder #326.1]
• Letter from N. B. Keevil to LP RE: Keevil asks LP to send him reprints of his papers on ionic and atomic sizes and the forces in crystals. [Filed under: K: Correspondence, Box #200, Folder #200.3]
• Letter from V. M. Goldschmidt to LP RE: Recommends Miss. L. Misch for appointment somewhere in the United States. Goldschmidt speaks very highly of both her work ethic and personality and hopes sincerely that an opportunity will be given to her. [Filed under: F: Correspondence, Box #136, Folder #136.19]
• Note from E. Rabinowitch to LP RE: Rabinowitch would be delighted to lecture during his visit to CIT and wishes to lecture on April 20th. [LP's reply: March 23, 1938] [Filed under: R: Individual Correspondence, Box #326, Folder #326.1]

• Letter from Arthur Hill, Chairman of the Chemistry Department at Yale University, to LP, RE: Asks LP whether he would be interested in joining Yale in a Sterling Professorship, which has a $10,000 salary and an allowance for a private assistant. Asks LP to keep this matter confidential for the time being. [Letter from LP to Hill, 3-24-1938] [Filed under LP Personal Safe: Drawer 2, Folder 2.005, 5.49]
• Letter from Curtis G. Benjamin to LP RE: Benjamin sends a complimentary copy of Crystal Chemistry by Charles W. Stillwell. The purpose of this book is threefold: to present the broad, basic concepts of Crystal Chemistry, to serve as a reference for advanced courses, and to offer a description of the nature of solid matter which should be both useful and interesting to all chemists or those interested in chemistry. [Filed under LP Correspondence: Box #253, Folder #253.1]
• Letter from Edward Reed to LP RE: Thanks LP for his comments regarding Harold D. Springhall and George C. Hampson. [Filed under: R: Correspondence, Box #340, Folder #340.3]
• Letter from F. W. Loomis to LP RE: Asks LP for his opinion of several men including Neddermeyer and Fowler and asks for any other suggestion regarding men capable to fulfill several positions at the University of Illinois. Loomis says that he is planning a visit to California at the end of the month. [Filed under: L: Correspondence, Box #230, Folder #230.4]
• Letter from K. Telinek to LP RE: Letter is in German.
• Letter from M. Merle Kindy to LP RE: On behalf of several teachers at Franklin High School, Kindy writes to ask LP several questions that can't be answered from any text book. [Filed under: K: Correspondence, Box #200, Folder #200.3]

• Letter from E. C. Williams to LP RE: Asks LP for a detailed, confidential opinion of Mr. K. J. Palmer in regards to his qualifications for the position in which he applied. [Filed under: LP Correspondence, Box #304, Folder #304.3]
• Letter from Hans Neurath to LP RE: Neurath brings up somewhat of a personal problem with LP and explains that he had taken a job at Duke University of Medicine however after six months he is unhappy for a variety of reasons. After learning that the field of protein chemistry is growing he asks LP if he knows of job openings relating to this other than in the south. [Filed under: N: Individual Correspondence, Box #276, Folder #276.8]
• Letter from Hugh S. Taylor to LP RE: Encloses mail for Marc de Hemptinne, from the University of Belgium, who is a visiting scientist in the U. S. For the next three months. Hemptinne will be arriving in Pasadena shortly where he can pick up the mail. [LP's reply: April 5, 1938] [Filed under: T: Individual Correspondence, Box #405, Folder #405.6]
• Notes: Statement by LP that he does not believe items on the regular chemistry budget be transferred to the Rockefeller Budget as it has been appropriated for special purposes. (Hand-written) [Filed under LP Science: Box #14.037, Folder #37.8]

• AHP writes cheque to: Lola Cook amount $30 [Filed under LP Biographical: Box #4.014, Folder #2]
• Letter from E. W. Hughes to LP RE: Hughes reports that he has just received a negative reply from the Lalor Foundation. Explains his plans to be in Pasadena no later than July 1st. [Filed under: H: Individual Correspondence, Box #163, Folder #163.1]
• Letter from LP to Arthur B. Lamb, Editor, Journal of the American Chemical Society RE: LP recommends that the Note by T. S. Gardner on "A Revised Parachor-Molecular Refraction Constant" be rejected for publication. [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 recommends, in agreement with Wilson and Kassel, that the letter on "Restricted Internal Rotation in Hydrocarbons" by Pitzer and Kemp be not accepted for publication. [Filed under LP Science: Box #14.002, Folder #2.3]
• Letter from LP to David Harker and Alexander Kossiakoff RE: Is glad to learn of the changes made to their paper. Offers other suggestions and considerations to be made before publication. [Filed under: H: Individual Correspondence, Box #151, Folder #151.10]
• Letter from LP to Dr. Alden H. Emery RE: LP thanks Emery for writing to him about Dr. Rabinowitch. Rabinowitch has agreed to speak at CIT on April 20th. [Emery's letter: March 19, 1938] [Filed under: R: Individual Correspondence, Box #326, Folder #326.1]
• Letter from LP to Dr. E. Rabinowitch RE: LP looks forward to his arrival on April 20th. [Rabinowitch's letter: March 19, 1938]
• Letter from LP to Dr. Jack Sherman RE: LP is glad to hear that he is enjoying his new position and explains that he has written to Professor Fulton recommending Palmer and Taylor. [Sherman's note: March 14, 1938] [Filed under: S: Individual Correspondence, Box #377, Folder #377.8]
• Letter from LP to Dr. Roscoe Dickinson RE: Rabinowitch will be here on April 30th to speak on "Kinetics of Free Atoms". [Filed under LP Correspondence: Box #94, Folder #94.5]
• Letter from LP to Mr. M. M. Kindy RE: LP is pleased to try to answer the questions in his letter of March 21st. [Filed under: K: Correspondence, Box #200, Folder #200.3]
• Letter from LP to Professor F. W. Loomis RE: LP looks forward to his visit at the end of the month and asks if reservations have been made to stay at the Athenaeum. LP reports that he does not know any of the young physicists very well but believes to Fowler is a great decision. [Filed under: L: Correspondence, Box #230, Folder #230.4]
• Letter from LP to Professor John Fulton RE: LP recommends either Mr. K. J. Palmer or Mr. D. X. Taylor. [Filed under: F: Individual Correspondence, Box #121, Folder #121.15]
• Letter from LP to Professor R. A. Millikan RE: LP asks if he would be interested in inviting Dr. Schein to speak. [Filed under: LP Correspondence, Box #247, Folder #247.1]
• Letter from LP to Professor W. A. Noyes, Jr. RE: LP is glad that Noyes was unable to offer Helmholz a position because he is doing such a fine job at CIT. LP looks forward to his visit this summer. [Filed under: N: Individual Correspondence, Box #279, Folder #279.5]
• Letter from W. A. Noyes to Professors Clark, Fieser, Lind and LP RE: Noyes encloses a list of books of a type similar to their Monographs with the prices per page and also a list of Monographs published since June 1, 1932. [Filed under: N: Individual Correspondence, Box #279, Folder #279.4]

• Letter from LP to Professor Arthur Hill, Sterling Chemistry Laboratory at Yale University, RE: Explains that it isn't possible for him to make an immediate decision regarding the offer of an appointment to a Sterling Professorship at Yale University. [Letter from Hill to LP, 3-21-1938] [Filed under LP Personal Safe: Drawer 2, Folder 2.005, 5.54]
• Letter from W. A. Noyes to LP RE: Asks LP whether information that Professor Lind has sent seems suitable for publication as a monograph. [Filed under: N: Individual Correspondence, Box #279, Folder #279.4]

• Letter from Lillian Kudner to LP and Professor E. Bright Wilson RE: Informing LP and Wilson that they will be undertaking a new printing of "Introduction to Quantum Mechanics," for Fall Term. Asks that a list of changes be sent as soon as possible. [Filed under LP Books: Box 1935b, Folder 1935b.1]
• Letter from Richard A. Rosanoff to LP RE: Writes to LP for help in straightening out his career and informs LP that he has recently written to Mr. Fogg requesting his reinstatement at CIT. At this time, he is interested in obtaining a degree in psychology. [Filed under: R: Correspondence, Box #340, Folder #340.3]

• AHP writes cheque to: Wesley Unfried amount $3.20 [Filed under LP Biographical: Box #4.014, Folder #2]

• AHP writes cheque to: Nellie Durby amount $2.85 [Filed under LP Biographical: Box #4.014, Folder #2]
• Manuscript: No Title, [re: Vitamin chemists: what they are and what they do] address to the Associates -- Todd Dinner, Pasadena, California. [LP Speeches 1938s.3]

  Associates - Todd Dinner, March 28, 1938. Speakers - Morgan, Borsook, Went, Pauling, Todd.

  Ladies and Gentlemen: As a man who is neither a biologist nor an organic chemist, I feel rather out of place tonight. My only information about vitamins and hormones, aside from the stock in trade of the ordinary chemist, consists of one story, which I hope is new to some of you. It deals with the beautiful young lady who, to relieve a headache, took two aspirin tablets. On feeling worse, she looked at the label on the bottle, 'which read "Plantabs, the perfect plant food; each tablet is the equivalent of one shovelful of fresh manure."

  Instead of talking about "Vitamins - what they are and what they do," I propose to say a few words about "Vitamin chemists - what they are and what they do." These vitamin chemists are extraordinary individuals - they are organic chemists who find the usual types of organic chemical investigation too easy and insist on tackling the hardest job in the world.

  [This paragraph was struck through by LP] The first step in the chemical attack on a vitamin consists in it separation from the original food stuff as a pure substance. This may be a hard job. Thus there was rejoicing in 1933 when a new method of extraction was found which gave 5 grams - a small spoonful - of vitamin B₁ from one ton of rice polishings.

  The second step consists in finding what atoms there are in the molecule. This is an easy job, involving straightforward analysis. It is found that in the hydrochloride of vitamin B₁ there are 12 carbon atoms, 18 hydrogen atoms, one oxygen atom, four nitrogen atoms, one sulfur atom, and two chlorine atoms. C₁₂H₁₈ON₄SCl₂

  This far everything has been plain sailing. The hard work starts with the next step - that of determining the way that these atoms are hooked to one another in the molecule, in order that the vitamin can then be made in the laboratory. The vitamin chemist became a man working a difficult jigsaw puzzle with invisible pieces, and simultaneously a detective seeking in the laboratory for clues as to how they fit together. This pursuit of the structure of molecules is enthralling, and it has been going on for a long time. In 1825 Faraday discovered benzene in a gas obtained by passing whale oil through a red hot tube. The benzene molecule is a simple one, containing six carbon atoms and six hydrogen atoms, yet it was not until 1865, forty years later, that the great chemist Kekulé, while dreaming of atoms, saw a chain of sic atoms, hand in hand, swing around and form a ring, and then, in his laboratory, prove that benzene contains this ring of six carbon atoms. The methods of vitamin chemists are those of the last century, but refined to the point that the immensely difficult problem presented by the B₁ molecule with its 38 atoms can be attacked. Even then the structure determination and synthesis required four years of work by a dozen able men, including Dr. Todd in Edinburgh and Dr. Buchman, who is now at the California Institute as a member of the Chemistry Department, in New York.

  I have been talking so far about what the vitamin chemists do, and not about what they are. Instead we might examine a specimen - not a representative specimen, but one of the hardy Scottish variant of the species. In the ten years since Dr. Alexander Todd was graduated from the University of Glasgow he has studied at the Universities of Frankfurt am Main, Oxford, and Edinburgh, working on the colored substances in flowers, substances produced by microorganisms and other natural products, including vitamin B₁ and vitamin C. Dr. Todd has held various senior fellowships, including the Beit Memorial Fellowship, and was the recipient in 1936 of the Meldola Medal of the Institute of Chemistry. He is Reader in Biochemistry at the University of London and staff member of the Lister Institute of Preventive Medicine. I am pleased to introduce as the next speaker Dr. Alexander Todd.

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