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• Imagination in science. Tomorrow 3 (December 1943): 38-39. Written by: LP. [Filed under: LP Publications, 1943p.5]

• Chemistry 1b Freshman Chemistry Hour Examination. [Filed under LP Biographical: Academia: Box 1.013, Folder 13.6]
• Chemistry 1b Freshman Chemistry Notice for Instructors concerning lecture quiz, hour examination, recitation, laboratory and lecture outlines. [Filed under LP Biographical: Academia: Box 1.013, Folder 13.6]
• Entry in research notebook by J. M. Ploeser, National Research Defense Committee, on NDRC-11. [Filed under LP Science: Materials re: Non-Pauling War Work, 1942-44: Box #13.007 Folder #7.3]
• Letter from C. Ernst Redemann, Toxicity Laboratory, University of Chicago, to Dr. D. S. Tarbell, Dept. of Chemistry, University of Rochester, RE: States he has forwarded Tarbell's letter on to Cal Tech since he doesn't have any reprints with him. [Letter from Dr. D. S. Tarbell to Dr. C. E. Redemann November 29, 1943] [Filed under LP Correspondence: #340.8]
• Letter from LP to Arthur L. Bloomfield, Stanford University Hospital. RE: Votes in favor of extending the contract with Weymouth. [Filed under LP Science: Assorted War Work, 1940-1946: Box #13.006 Folder #6.4]
• Letter from LP to Dr. C. S. Marvel, University of Illinois. RE: Informs him that he has been elected Chairman of the Section of Chemistry. Shall write later about th duties of the office. [Filed under LP Science: National Academy of Sciences, 1939-1944: Box #14.018 Folder #18.3]
• Letter from LP to Ralph Spitzer. [Letter from Ralph Spitzer to LP November 22, 1943] [Filed under LP Biographical: Political Issues: Ralph Spitzer: Academic Freedom and Passport Difficulties, 1942-1994: Box #2.034, Folder 34.1]

  December 1, 1944

  Dr. Ralph Spitzer

  Box 225

  Wood's Hole, Mass.

  Dear Ralph:

  I am returning herewith your applications for a National Research Fellowship, in order that you may fill in the blank space for a second choice of a place to work. My recommendation would be to select Harvard, with either Wilson or Kistiakowsky (or both). If you prefer, Minnesota with Crawford would also be satisfactory, in my opinion. I believe that it is wise to put down a second choice.

  I am sending my letter of recommendation under separate cover to the Fellowship Board.

  I am very glad to know that you are pleased with the work that you are now doing. I wish. that I had come along with the other members of the Division when the visit to Wood's Hole was made some time ago, but I could not get away from Pasadena to make the trip. I know that the work is valuable.

  Cordially yours,

  Linus Pauling

  LP:fh

  1 Enc.

  P. S. There is something to be said for the point of view which Wilson expressed to you. I too think that you are coming to the time of life when you should settle down in what is essentially a permanent job. I think, however, that it would be all right for you to spend one year on a fellowship job, but not more.

• Letter from Prof. Arthur B. Lamb, Editor, JACS, to LP RE: Requests LP review a manuscript entitled “Structure of Ethyl Ionylidene Acetates” by Dr. Sobotka et al. Encloses the comments by the first referee, Dr. Smith, who requested another opinion be brought in. [Letter from LP to Lamb December 8, 1943] [Filed under LP Correspondence: Box #191.1, file:(Journal of the American Chemical Society)]
• Memo from JB Koepfli to Staff Members, Students, and Employees of Gates and Crellin Laboratories RE: Discusses the locations fo fire extinguishers and outlines use. [Filed under LP Biographical: (CIT: Materials re: Division of Chemistry and Chemical Engineering, 1915-1944), Box #1.019, Folder #19.7]
• Telegram from LP to Henry Allen Moe, Guggenheim Foundation. RE: Finds February 2-3 acceptable. Asks to be wired the decision. [Filed under LP Science: John Simon Guggenheim Memorial Foundation, 1925-1945: Box #14.013 Folder #13.18]

• Letter from Henry Allen Moe, Guggenheim Foundation, to LP. RE: Informs him that the first meeting will be February 2-3. [Filed under LP Science: John Simon Guggenheim Memorial Foundation, 1925-1945: Box #14.013 Folder #13.18]
• Letter from LP to Dr. Arthur L. Bloomfield, Stanford University Hospital. RE: Would be pleased to have lunch with them on the 14th. Informs him that he is visiting Berkeley on the 13th. [Filed under LP Science: Assorted War Work, 1940-1946: Box #13.006 Folder #6.4]
• Letter from LP to Dr. Charles L. Parsons, Secretary. RE: Certifies that Jerry Donohue is a registered graduate student. [Filed under LP Science: American Chemical Society: Correspondence, 1943-1948: Box #14.003 Folder #3.1]
• Letter from LP to Dr. John Lawrence, University of California. RE: Informs him that he will be in Berkely soon, and would like to see him. [Filed under LP Science: Scientific War Work - Materials re: the Pauling Oxygen Meter, 1942-1950: Box #13.002 Folder #2.1]
• Letter from LP to Mr. E.C. Barrett RE: Requests an availability certificate be issued to Mrs. Joyce Klima who is leaving on December 4, 1943. She resigned and they are willing she leave because she does not have the necessary training or background for the job. [Filed under LP Biographical: Academia: Box #1.029 file 29.1]
• Letter from LP to Mr. William Krigbaum RE: suggests that Krigbaum wait until mid-year grades are recorded to send in application. [Letter from Krigbaum to LP November 27, 1943] [Filed under LP Biographical: Academia: Box 1.017, Folder 17.2]
• Letter from Patricia, sister, to AHP: Mentions Mother's watch, which she left out of the last letter, and how much she is enjoying work despite Merton Sr.'s misgivings. Upon speaking with the Attorney, has decided to sign the papers. [Filed under AHP: AHP Siblings: Genealogy, Biographical Information, and Correspondence: Box #3.026, Folder #26.8]
• Memo from LP to Dr. Dan Campbell. RE: Conference with Dr. A. N. Richards. [Filed under LP Science: Scientific War Work Materials re: Oxypolygelatin: Box #13.004 Folder #4.1]

• Telegram from Henry Allen Moe, to LP. RE: Informs him of the dates of the first Committee meeting. [Filed under LP Science: John Simon Guggenheim Memorial Foundation, 1925-1945: Box #14.013 Folder #13.18]

• Letter from Arthur L. Bloomfield, Committee on Medical Research, to LP. RE: Thanks him for the note. Looks forward to seeing him. Asks that he get in touch with Marshak while in Berkeley. [Filed under LP Science: Assorted War Work, 1940-1946: Box #13.006 Folder #6.4]
• Writes cheque to "George H. Kinnick," $6.15. [Filed under LP Biographical: Business and Financial, Box 4.017, Folder 17.1]
• Writes cheque to “Julian. Gardening” $5.00 [LP Biographical: Business and Financial 4.073, folder 72.1]

• Writes cheque to “Jane Cimbert Preserves” $16.35 [LP Biographical: Business and Financial 4.073, folder 72.1]
• Writes cheque to “Maybelle Marbury. Laundry” $3.00 [LP Biographical: Business and Financial 4.073, folder 72.1]
• Writes cheque to “S. Calif. Tel. Co” $19.84 [LP Biographical: Business and Financial 4.073, folder 72.1]

• Letter from Edward C. Barrett, Comptroller, C. I. T. to Norma S. Thompson, Secretary, The Rockefeller Foundation RE: The animal house construction project was delayed, then revised and now the cost is estimated at $6,316–higher than the $5000 allotted by the Rockefeller Foundation and Barrett would like to know if this excess cost could be covered by grant money remaining in the unexpended balances [Reply December 13, 1943] [Filed under LP Science: Rockefeller Foundation, 1943-1983: Box #14.039 Folder #39.1]
• Letter from LP To William Astbury. [Letter from Astbury to LP November 8, 1943] [Filed under LP Correspondence: Box #6.18, file:(Astbury, William T, 1937-1961)]

  December 6, 1943

  Dr. W. T. Astbury

  Textile Physics Laboratory

  The University

  Leeds, 2

  England

  Dear Astbury:

  Both Dr. Shaffer and I have been so busy during the last two or three years that we have not succeeded in getting our paper on the use of punched card machines in x-ray and electron diffraction calculations ready for publication; I am accordingly writing this letter in answer to your letter of November 8, instead of sending the reprints which you requested. We hope to finish preparing a description of this work for publication before long.

  The x-ray calculations and electron diffraction calculations are made with use of a sorter and an alphabetic tabulator. The eighty columns of the alphabetic tabulator are divided into twelve fields of six columns each and a field of eight columns which is used for the description of the calculation. The twelve fields of six columns each are used for carrying out simultaneous summations for twelve values of the angle argument. Our x-ray Fourier series punched cards come in packs of eleven cards, representing 126 values of the argument, covering one-quarter of a revolution at intervals of 0.002 revolutions. Sine and cosine functions up to the frequency of 36 are included in the table, and amplitudes of plus and minus 500, 400, 300, 200, 100, 50, 40, 30, 20, 10, 5, 4, 3, 2, 1, permitting, by combining several packs of cards, any integral amplitude from -1000 to +1000 for sine and cosine functions of any frequency within the range covered. The evaluation of a Fourier sum is made by packing out the appropriate packs of cards, rearranging them in the sorter in such a way that all of the first cards are together, all of the second cards, etc., and then passing them through the alphabetic tabulator, which sums the twelve columns, prints the twelve answers, resets itself to zero, and proceeds with the similar treatment of the next twelve values. A calculation is good to about four significant figures. There is a great saving of time over any other method of calculation with which we are acquainted.

  The great labor involved in this work was that of preparing the original master set of punched cards. I suggest that if you find it possible to make use of this method it would be far better for you to obtain a duplicate set of our cards than to do the work ab initio.

  We also have an extensive file of cards for use in electron diffraction calculations. The punched card machines have been found of further use in the solution of simultaneous equations.

  We would be glad to help you in any way that we can.

  With best regards, I am

  Sincerely yours,

  Linus Pauling

  LP:jr

• Letter from LP to Dr. Robert F. Loeb, College of Physicians and Surgeons. RE: Informs him that he has not yet heard whether or not Dr. Addis's contract was continued. [Filed under LP Science: Scientific War Work Materials re: Oxypolygelatin: Box #13.004 Folder #4.1]
• Letter from LP to Prof. J. Franklin Lewis, Department of Chemistry, University of Kansas City, RE: Regrets he has no one to recommend for the position. [Letter from Lewis to LP November 29, 1943] [Filed under LP Correspondence: Box #230.9, file:(L: Correspondence, 1943)]
• Letter from Linus Pauling Jr to LP RE: Sends bad news that he washed out of air crew training on the psychological interview. The psychiatrist decided he was subject to too much nervous tension. Talks about the other boys in the group, some of whom have washed. Explains the phsychomotor test to LP. [Filed under LP Biographical: Personal & Family, Family Correspondence: Linus Carl Pauling, Jr. 1930-1944: Box #5.036, Folder 36.4]

  December 6, 1943

  Dear Dad,

  I was very happy to receive your letter and the enclosure. Thank you very much. What with Christmas shopping to do I'm going to need all I can get.

  I have very bad news. I washed out of air crew training on the psychological interview. The psychiatrist decided that I was subject to too much nervous tension. This rejection was awfully disappointing to me. Apparently my other test were all right, although I'm not certain yet. I asked the flight surgeon, and he said that I could reapply for cadet training after I have proved myself in combat. Armoror's [sic] school takes nine weeks, aerial gunnery six weeks, so if things move along I can see action inside of a year. The sooner the better.

  Meanwhile, training proceeds as usual. Everyday some of the boys report to sign questionnaires and get their folders, and then they are happy because they are eligible for shipment to college. About fifteen of the original hundred of our group have washed already. Undoubtedly more will, since those that washed are deficient medically, and we had many stiff mental aptitude test that will show up faults.

  The psychomotor test was extremely interesting and a great deal of fun. All information concerning it is supposedly confidential, but I think you ought to hear about it.

  The first test was a board with rows of square holes in it and square pegs with round heads.

  They are turned 180 as rapidly as possible.

  The next test was a wheel with a spot in it. The wheel revolved, as we held a pencil to the spot and pressed one of two buttons with the other hand as two lights flashed.

  The third was a little machine with a wheel that contained a button that moved in a slot. A contact, operated by the handles shown, moved around over the wheel.

  The next was a board with lights. As combinations of lights flashed on, we pushed one of four switches.

  The fifth was a machine with rudder bar and joy sticks and a board with pairs of lights. A combination of green lights would flash on, and we matched the red one up with the controls.

  The last test was a small plane held in place by springs which were attached to a rudder bar. Our problem was to keep the plane balanced on a target.

  This psychomotor was like a penny arcade, and we enjoyed ourselves doing it. Give my love to mom and the kids

  Love,

  Linus

  P.S. I'm sending you the last two editions of the post paper.

• Letter from R. S. Holmes, Navy Department, to LP. RE: Informs him that the Bureau of Ships is definitely interested in the Oxygen Meter. [Filed under LP Science: Scientific War Work - Materials re: the Pauling Oxygen Meter, 1942-1950: Box #13.002 Folder #2.1]
• Notice about Notebooks an Reports in immunochemistry from LP. [Filed under LP Science: Scientific War Work Materials re: Oxypolygelatin: Box #13.004 Folder #4.1]
• Proposal of the Fourth Year for the Chemistry Option and the Applied Chemistry Option. [Filed under LP Biographical: (CIT: Materials re: Division of Chemistry and Chemical Engineering, 1915-1944), Box #1.019, Folder #19.7]
• Writes cheque to S. Counties Gas Co. 2 months” $11.47 [LP Biographical: Business and Financial 4.073, folder 72.1]
• Writes cheque to ‘Elma McFarland. Music lessons for Linda” $5.00 [LP Biographical: Business and Financial 4.073, folder 72.1]
• Writes cheque to “Adohr Milk” $15.09 [LP Biographical: Business and Financial 4.073, folder 72.1]
• Writes cheque to “F.C. Nash. Things for Xmas” $23.00 [LP Biographical: Business and Financial 4.073, folder 72.1]
• Writes cheque to “Flintridge school for boys. Tuition Peter, Linus, etc” $273.92 [LP Biographical: Business and Financial 4.073, folder 72.1]
• Writes cheque to “HL Byram. Pers prop Tax for year 1943" $13.90 [LP Biographical: Business and Financial 4.072, folder 72.3]
• Writes cheque to “Pasadena Tuberculosis Ass.” $2.00 [LP Biographical: Business and Financial 4.073, folder 72.1]
• Writes cheque to “Poly. Linda's tuition. #35 - Crellies $140 + other expenses” $207.80 [LP Biographical: Business and Financial 4.073, folder 72.1]
• Writes cheque to “Readers Digest” $5.00 [LP Biographical: Business and Financial 4.073, folder 72.1]
• Writes cheque to “State Treasurer of Calif. Personal income tax - P & me” $27.64 [LP Biographical: Business and Financial 4.073, folder 72.1]
• Writes cheque to “Wm. W Taylor. Jr. Clothes, etc for Linus, Peter, etc” $13.48 [LP Biographical: Business and Financial 4.073, folder 72.1]

• Letter from D.L. Tabern to LP RE: Asks LP to supply him with a brief biography to be included in the announcements of his upcoming lecture which will be published in The Chemical Bulletin. [LP's letter: August 30, 1943, LP's reply: December 18, 1943] [Filed under: LP Speeches, 1944s.1]
• Letter from LP to Frank Blair Hanson, The Rockefeller Foundation RE: Explaining the delays/changes to the construction of the animal house/room as detailed in Barrett's letter to Thompson (December 6, 1943), which this letter accompanies. [Filed under LP Science: Rockefeller Foundation, 1943-1983: Box #14.039 Folder #39.1]
• Writes cheque to "CA Morse," $4.00. [Filed under LP Biographical: Business and Financial, Box 4.017, Folder 17.1]
• Writes cheque “11-1 to January 1, 1944 St. News - 250 LA Times 10-1 to January 1, 1944 150" [no amount] [LP Biographical: Business and Financial 4.073, folder 72.1]

• Ch 1b Freshman Chemistry Notice for Instructors concerning assignment, exam grading, recitation, laboratory, grading unknowns, lecture outlines, and added attraction. [Filed under LP Biographical: Academia: Box 1.013, Folder 13.6]
• Letter from Dr. John H Lawrence, Aviation Medicine Unit, UC Berkeley, to LP RE: Regrets he will be unable to see LP when he comes to Berkeley on the 13th, as he himself leaves for New York on the 10th. Notes that Dr. Tobias will want to speak to LP about the piece of equipment. [Filed under LP Correspondence: Box #230.9, file:(L: Correspondence, 1943)]
• Letter from Dr. Kenneth J. Palmer, Western Regional Research Laboratory to LP RE: States that he was very pleased to hear that LP would be giving a talk before the local section of the American Chemical Society and hopes that LP will arrange time for a visit to the Regional Laboratory. Also invites LP and AHP for dinner some evening. [Letter from LP to Palmer December 11, 1943] [Filed under LP Correspondence Box: #304.3, file:(Palmer, Kenneth J.)]
• Letter from L. M. Henderson, Chairman of the Jury of the Willard Gibbs Award, to Members of the Jury. RE: Informs them that neither nominee obtained the required majority. Is resubmitting the ballots, and asks that they be returned promptly. [Filed under LP Science: American Chemical Society: Materials re: Committees and Awards, 1948-1951, 1967: Box #14.010 Folder #10.7]
• Letter from LP to American Chemical Society. RE: Requests a copy of Volume 30 Number 14 of Chemical Abstracts along with a statement of the cost. [Filed under LP Science: American Chemical Society: Correspondence, 1943-1948: Box #14.003 Folder #3.1]
• Letter from LP to American Chemical Society. RE: Requests a copy of the Journal of the American Chemical Society for October, 1938. [Filed under LP Science: American Chemical Society: Correspondence, 1943-1948: Box #14.003 Folder #3.1]
• Letter from LP to Dr. Fred T. Wall, Department of Chemistry, University of Illinois RE: Regrets that they have no one to recommend for the job he described, and says he will let him know if someone comes to his attention before summer. [Letter from Wall to LP November 16, 1943] [Filed under LP Correspondence: 431.2]
• Letter from LP to Henry Allen Moe, Guggenheim Foundation. RE: Is glad the date of the meeting has been set. Informs him that the books have arrived. [Filed under LP Science: John Simon Guggenheim Memorial Foundation, 1925-1945: Box #14.013 Folder #13.18]
• Letter from LP to Mr. Frank P. Buff. RE: responds to letter of December 5. Invites Buff to Miss Kittredge's office on Monday, December 13 for a talk about conditions at Caltech. Note in pencil at bottom to cc Mrs. Augé. [Filed under LP Biographical: Academia: Box 1.017, Folder 17.2]
• Letter from LP to Mrs. J Auge RE: Requests information be send regarding the fees Mr. Barrett must pay. [Filed under California Institute of Technology: Materials re: Division of Chemistry and Chemical Engineering, 1933-1963, No Date: Box #1.024, Folder 24.10]
• Letter from LP to Prof. Arthur B. Lamb, Editor, JACS, RE: Sends comments and suggestions on the manuscript “The Reciprocal System, etc” by Vogt and Wood. Recommends that it not be accepted for publication unless certain revisions are made. [Filed under LP Correspondence: Box #191.1, file:(Journal of the American Chemical Society)]
• Letter from LP to Prof. Arthur B. Lamb, Editor, JACS, RE: Sends his comments on the manuscript “Structure of Ethyl Ionlylidene Acetates” by Dr. Sobotka et al. Agrees with the first referee in recommending that it not be accepted for publication. [Letter from Lamb to LP December 1, 1943] [Filed under LP Correspondence: Box #191.1, file:(Journal of the American Chemical Society)]
• Meeting Minutes of the Division of Chemistry and Chemical Engineering. Note at bottom: “Distributed to Staff members through Instructors (Noyes, Eberhardt, Waser, O'Gorman)”. [Filed under LP Biographical: (CIT: Materials re: Division of Chemistry and Chemical Engineering, 1915-1944), Box #1.019, Folder #19.7]
• Weight-Height Record for Crellin Pauling: Height 45.6 Inches, Weight 46.7 Pounds. Gain since Sept. 1943, .5 Inches, 1.5 Pounds. [Filed under LP Biographical: Personal & Family, Family Correspondence: Edward Crellin Pauling. 1930-1995, No Date: Box #5.048, Folder 48.1]
• Writes cheque to “Am Phil Soc. T Jefferson's Garden Book” $5.00 [LP Biographical: Business and Financial 4.072, folder 72.3]
• Writes cheque to “First Fed. Dec 1 Payment” $210.24 [LP Biographical: Business and Financial 4.072, folder 72.3]
• Writes cheque to “Mr. Crellin. Dec 1 payment” $80.00 [LP Biographical: Business and Financial 4.072, folder 72.3]

• Letter from LP to Dr. Thomas Addis RE: Informs Dr. Addis that he will see him Tuesday morning before his 12:00 appointment with Dr. Bloomfield but will be unable to stay the night. [Filed under LP Correspondence: Box #2.1, file:(Addis, Thomas 1940-1945)]
• Letter from LP to Mr. E.C. Barrett RE: Writes about research on dehydration of vegetables, says they would be glad to have an additional grant of $10,000 with an extension of time. [Filed under LP Biographical: Academia: Box #1.029 file 29.1]
• Letter from LP to Mr. EC Barrett RE: Staes of his plans to offer appointment as full-time Graduate Assistant to Mr. Kurt M. Mislow. [Filed under California Institute of Technology: Materials re: Division of Chemistry and Chemical Engineering, 1933-1963, No Date: Box #1.024, Folder 24.10]
• Letter from LP to Prof. Gilbert N. Lewis, Department of Chemistry, UC Berkeley, RE: Writes that he looks forward to seeing Lewis when he visits Berkeley next Monday so that they may further discuss their papers on the absorption bands of carotenoids. [Letter from Lewis to LP November 27, 1943] [Filed under LP Correspondence: Box #216.1, file:(Lewis, G.N. Correspondence)]

• Letter from Dr. A. R. Goldfarb, Research and Biochemical Laboratories, to LP RE: Requests LP comment on some speculations concerning the O-ethers of hyrdroxylamine. [Letter from LP to Goldfarb December 16, 1943] [Filed under LP Correspondence: Box #136.18, file:(Goldfarb, A. R.)]
• Letter from LP to Dr. T. C. Daniels, University of California. RE: Informs him that he will need a blackboard and a lantern for his talk on Monday. [Filed under LP Science: American Chemical Society: Correspondence, 1943-1948: Box #14.003 Folder #3.1]
• Letter from LP to Mr. Donald H. Baker, Kedzie Chemical Laboratory, Michigan State College. RE: informs that the only part-time fellowships available are teaching fellowships and that he will send some application blanks. [Filed under LP Biographical: Academia: Box 1.017, Folder 17.2]
• Letter from LP to Prof. L. L. Quill, Chemistry Dept., University of Kentucky, RE: Writes in regards to Prof. William Young's recommendation of Dr. Max Rogers for a position in inorganic chemistry and industrial chemistry. Describes Rogers' relevant education and experience. [Letter from Laurence L. Quill to LP December 22, 1943] [Filed under LP Correspondence: #335.7]
• Letter from Linus Pauling Jr to AHP RE: States that he was happy to hear from her and explains that he felt low writing Dad that he washed out and that another boy who washed out took poison in attempt to commit suicide and is now in the hospital. States Texas is too cold and many of the boys have pneumonia. [Continues letter the next day] Explains routine and was reminded of home waking up to the sun. [Filed under LP Biographical: Personal & Family, Family Correspondence: Linus Carl Pauling, Jr. 1930-1944: Box #5.036, Folder 36.4]

  December 10, 1943

  Dear Mom,

  I was happy to get your letter, as always. I received all six bucks in good shape. The little iron and the vitamins arrived safely. Thanks very much. Christmas shopping is going to be a problem for me, too. I'm going to stick to the PX for thing as the town is full of gyp-joints. I think that my present for the family will not be very magnificent. This army is going to do me good by teaching me how to get alone on very little money.

  I felt pretty low when I had to write Dad that I washed out. Another failure can be added to my long list.

  One of the boys in our barracks, a somewhat morose and introverted chap who washed out, took some poison in an attempt to commit suicide or to get himself discharged. We sent him off to the hospital and I haven't heard anything further.

  Joanie Newman mentioned the nice days you've been having. She and I correspond fairly regularly. Texas is much too cold for comfort. Six of seven of the boys have gone to the hospital with pneumonia. Some fun.

  I have a cold, a cough , and a sore throat. I don't know what I'm going to do about getting rid of all those.

  I'm on detail as a runner tonight. It's fairly easily; I get to sleep most of the time.

  December 11, 1943

  I managed to get four hours sleep. I don't' know whether I can get more, because activities begin good and early. A large bunch of guys just checked in for KP duty.

  6:15 am

  I just got back from chow. The rest of the boys have come in, waiting for transportation to the range. I hope I can get off to bed soon.

  12:30 P.M.

  I had 4 hours sleep in bed this morning. Now I suppose I go back for some more detail. I was extremely pleased to wake up and find the sun shining and soft music playing. It reminded me of home.

  Give my love to Dad, Pete, Linda, and Crellie.

  Love,

  Linus

  P.S. Pete, I am awfully happy to hear such good reports.

• Memo from LP to Arletta Townsend. RE: Summary of NDRC Chem 1c from July 1942 through November 30, 1943. [Filed under LP Science: Scientific War Work - Materials re: the Pauling Oxygen Meter, 1940-1947: Box #13.001 Folder #1.1]]
• Summary of NDRC Chem 13 from January 1, 1943 through November 30, 1943; Summary of Immunochemistry for November 1943; Summary of CMR Chem 1 from July 1942 through November 30, 1943. [Filed under LP Biographical: Academia, California Institute of Technology: Assorted Financial Materials: 1945-1965: Box #1.032, Folder 32.1]
• Telegram from LP to Mr. Karl F. Heumann, Iowa State College RE: offers position as a full-time war research assistant. [Telegram from Heumann to LP December 9, 1943] [Telegram from Heumann to LP December 11, 1943] [Filed under LP Biographical: Academia; Box 1.017, Folder 17.2]

• Letter from C. S. Marvel, University of Illinois, to LP. RE: Shall be willing to undertake th duties of Chairman of the section. [Filed under LP Science: National Academy of Sciences, 1939-1944: Box #14.018 Folder #18.3]
• Letter from LP to Dr. Kenneth Palmer, Wester Regional Research Laboratory RE: Apologizes that he will not have time for either a visit to the Regional Laboratory or dinner. [Letter from Palmer to LP December 8, 1943] [Filed under LP Correspondence Box: #304.3, file:(Palmer, Kenneth J.)]
• Letter from Professor Roger J. Williams, Department of Chemistry, University of Texas to LP RE: Asks for his opinion and help with a problem regarding starch molecules and possible interfaces between it and the water, and asks numerous questions about this subject. (Note at the bottom in pen: “My hearty wishes for a Merry Christmas to yourself and family! R. W.”) [Letter from LP to Williams December 20, 1943] [Filed under LP Correspondence: 436.7]
• Memo from J. P. Youtz to LP RE: Informs him that he showed Dr. Julio Iribarne and his wife around the Division of Chemistry in LP's absence. [Letter from Deulofeu October 1, 1943] [Filed under LP Correspondence Box: #98.8, file:(D: Correspondence, 1943)]
• Telegram from Karl F Heumann to LP RE: expresses interest in war research, requests application forms. [Telegram from LP to Heumann October 9, 1943] [Letter from Corey to Heumann December 13, 1943] [Filed under LP Biographical: Academia: Box 1.017, Folder 17.2]

• Article: “Linus Carl Pauling”, Phi Lambda Upsilon Register, January 1942. [Filed under LP Scrapbooks: 1941-1945: Box #6.004, Folder 4.3]
• Letter from Robert B. Corey to Karl B. Heumann, Iowa State College RE: Gives more information about full-time war research position. [Telegram from Heumann to LP December 11, 1943] [Telegram from Heumann to Corey January 26, 1943] [Filed under LP Biographical: Academia: Box 1.017, Folder 17.2]
• Letter from the Secretary to Frank Blair Hanson, The Rockefeller Foundation to E. C. Barrett, Comptroller, C. I. T., cc: LP RE: Up to $5000 of Rockefeller grant appropriations may be used to cover the cost of the animal house [Letter from LP December 7, 1943] [Filed under LP Science: Rockefeller Foundation, 1943-1983: Box #14.039 Folder #39.1]
• Memo from LP to J. H. Sturdivant. RE: NDRC-1 contract extension. [Filed under LP Science: Scientific War Work - Materials re: the Pauling Oxygen Meter, 1940-1947: Box #13.001 Folder #1.1]]
• Program: Immunology – The Interaction of Antibodies and Simple Chemical Substances, California Section of the American Chemical Society, Berkeley, California. [Filed under: LP Speeches, 1943s.6]

• Letter from H. I. Schlesinger, Dept. of Chemistry, University of Chicago, to LP RE: Asks for Horace Russell's address so he may contact Russell regarding work they did a few summers ago. [Letter from LP to Prof. H. I. Schlesinger December 21, 1943] [Filed under LP Correspondence: #357.7]

• Letter from Prof. Arthur B. Lamb, Editor, JACS, to LP RE: Requests he write a review of the book :The Optical Properties of Organic Compounds” by Alexander N. Winchell for publication in the JACS. [Letter from LP to Lamb December 27, 1943] [Filed under LP Correspondence: Box #191.1, file:(Journal of the American Chemical Society)]
• Monthly report for OEMsr-584 by LP. [Filed under LP Science: Scientific War Work - Materials re: the Pauling Oxygen Meter, 1942-1950: Box #13.002 Folder #2.2]
• Rough draft of monthly report for OEMsr-584 by LP. [Filed under LP Science: Scientific War Work - Materials re: the Pauling Oxygen Meter, 1942-1950: Box #13.002 Folder #2.2]

• Letter from Charles L. Parsons, American Chemical Society, to LP. RE: Informs him that he has been elected Councilor-at -Large for a two year term. [Filed under LP Science: American Chemical Society: Correspondence, 1943-1948: Box #14.003 Folder #3.1]
• Letter from Dr. M.S. Kharasch, Department of Chemistry, University of Chicago, to LP RE: Writes a letter of recommendation for Dr. Stanley Wilson, a professor of chemistry, who, until recently, had been teaching in China. Asks that LP meet with Wilson when he comes and help find him a position in Southern California. [Letter from LP to Kharasch December 28, 1943] [Filed under LP Correspondence: Box #200.8, file:(K: Correspondence, 1943)]
• Letter from LP to Dr. A. R. Goldfarb, Research and Biochemical Laboratories, RE: Suggests some revisions for the argument Goldfarb sent for comments. [Letter from Goldfarb to LP December 10, 1943] [Filed under LP Correspondence: Box #136.18, file:(Goldfarb, A. R.)]
• Letter from LP to Dr. Paul Emmett. [Letter from Emmett to LP October 30, 1943] [Filed under LP Correspondence: Box #109.1, file:(Emmett, Paul, 1937-1959, 1977-1982)]

  December 16th, 1943

  Dr. Paul Emmett

  Butler Hall

  400 West 119th Street

  New York, New York

  Dear Paul:

  Don Yost has shown me your letter to him, and I am writing to say that while I was in Berkeley day before yesterday I learned that Fred Stitt would be interested in having a war job, and leaving the Regional Laboratory at Albany, California, for at least the period of the war. He is a very good man, and I think that you would find him useful. His salary, with overtime, is probably somewhere around $4500 now.

  We are all getting along well—Linus, Jr. is in the Air Corps in Texas now, with the rest of us at home. I hope that I get a chance to see you some time this spring when I come East.

  Sincerely yours,

  Linus Pauling

  LP:jr

• Letter from LP to Mr. Ernest Weinmann RE: informs that the secretary will be sending application blanks and states that it is possible that Weinmann could work with Haagen-Smit. Note in pencil at bottom to CC Mrs. Augé [Filed under LP Biographical: Academia: Box 1.017, Folder 17.2]
• Letter from S. D. Beard, American Cyanamid Company, to LP. RE: Asked Dr. Dyer to send him the data that contributed to the information on which the dating of antitoxin was established. Does not provide clear information on antitoxin. [Letter from LP to Beard December 28, 1943] [Filed under LP Science: Materials re: Antibody and Antigen Research; the Nature of Serological Reactions, 1940-1947, 1950-1952, 1973, 1986: Box #7.001 Folder #1.1]
• Receipt for transmitting a classified monthly report from LP to E. P. Stevenson. [Filed under LP Science: Scientific War Work - Materials re: the Pauling Oxygen Meter, 1942-1950: Box #13.002 Folder #2.2]
• Receipt for transmitting a classified monthly report from LP to J. H. Rushton. [Filed under LP Science: Scientific War Work - Materials re: the Pauling Oxygen Meter, 1942-1950: Box #13.002 Folder #2.2]
• Receipt for transmitting a classified monthly report from LP to S. S. Prentiss. [Filed under LP Science: Scientific War Work - Materials re: the Pauling Oxygen Meter, 1942-1950: Box #13.002 Folder #2.2]

• Letter from LP to Dr. D.L. Tabern RE: LP apologizes for the delay but he now encloses a biography in which The Chemical Bulletin can modify in whatever way they please. LP is looking forward to his lecture and provides details for his travel plans. [Tabern's letter to LP: December 7, 1943, Tabern's reply: December 31, 1943] [Filed under: LP Speeches, 1944s.1]
• Letter from Linus Pauling Jr to AHP RE: states he received the Christmas package from the kids and is very pleased with it. Asks if she can get something for Crellie. Talks about his health breaking down from staying out firing in the cold, waking up with a fever and ended up in the hospital. [continued next day:] States he fells better toady and will try to see Mrs. Sturdivant on Christmas but will probably spend Christmas in camp. Poses thought of transferring to the medical department of to continue on with combat crew training. [Filed under LP Biographical: Personal & Family, Family Correspondence: Linus Carl Pauling, Jr. 1930-1944: Box #5.036, Folder 36.4]

  December 18, 1943

  Dear Mom,

  I received the Christmas package from the kids and I am awfully pleased with it. I opened some of the things. Pete's dates were delicious. I couldn't resist eating them. The chain is extremely nice too. I'll write and thank each one.

  I mailed a package to Linda and Peter on the 15^th via Caltech. I hope it gets thru in time. I forgot to included Pete's belt though.

  Shopping is just about impossible here. I can't get into town while stores are open, and the Px's have a rather limited choice. Would you get a little something for Crellie for me? I failed completely to find anything suitable for you and Daddy.

  My health finally broke down completely. We spent Thursday on the range firing sub-machine guns and carbines. It was so cold that the ice stayed unmelted all day. On Friday I woke up with a 103 fever and acute nasopharyngitis (I think that's the name). I ended up in the hospital of course. Today my temperature is down to about 100. It feels good to be able to sleep as much as I want to.

  December 19, 1943

  Today I feel better. I ought to be able to get out of here in two or three days. I'm going to try and get a pass to go and see Mrs. Sturdivant on Christmas, but the chances are slim. I'll probably spend Christmas in camp.

  How do you manage with Sadie gone? It much be awfully hard on you. You shouldn't try to do too much.

  I don't know whether I should try to transfer to the medical department or to continue on with combat crew training. It will require further thought.

  I hope you have a happy holiday season with the family.

  Much love,

  Linus

• Note from R. E. Rundle to LP RE: States that Dr. Sidney Fox is now in Ames and recommends other Caltech people to come. Mentions the birth of his son on November 23, and inquires about the paper he submitted to Dr. Sturdivant. [Letter from LP to Dr. R. E. Rundle December 28, 1943] [Filed under LP Correspondence: #336.12]

• Letter from Arthur L. Bloomfield, Chairman, Panel of Consultants, to Dr. E. C. Andrus, National Academy of Sciences. RE: Informs him that the panel met on December 14th. Discusses Marshek's project. Recommends that it be investigated. Discusses Kinsell's project. Recommends it with reservation. [Filed under LP Science: Assorted War Work, 1940-1946: Box #13.006 Folder #6.4]
• Letter from Arthur L. Bloomfield, Committee on Medical Research, to LP. RE: Has written to the CMR as authorized in the meeting on Dec. 14th. [Filed under LP Science: Assorted War Work, 1940-1946: Box #13.006 Folder #6.4]
• Letter from Frank Blair Hanson, The Rockefeller Foundation to LP RE: Writing in hopes that C. I. T. will be able to supply the balance on the funds needed for the animal house (after the $5000 from the Rockefeller Foundation). [LP's letter December 7, 1943] [Filed under LP Science: Rockefeller Foundation, 1943-1983: Box #14.039 Folder #39.1]
• Letter from Frank Capra, Lt. Col. Sc., U.S. Army Signal Corps Photographic Center to LP RE: Requests information on silicon hydride. [Letter from LP to Capra December 27, 1943] [Filed under LP Correspondence Box: #74.11, file:(C: Correspondence, 1944)]
• Letter from Henry Allen Moe, Guggenheim Foundation, to LP. RE: Asks how March 18-19 suits him for the second meeting. [Filed under LP Science: John Simon Guggenheim Memorial Foundation, 1925-1945: Box #14.013 Folder #13.18]
• Letter from LP to Dr. Roger J. Williams, Department of Chemistry, University of Texas. [Letter from Williams to LP December 11, 1943] [Filed under LP Correspondence: 436.7]

  December 20, 1943

  Dr. Roger J. Williams

  Department of Chemistry

  The University of Texas

  Austin 12, Texas

  Dear Roger:

  I am not sure that I understand completely the problem mentioned in your letter of December 11, but I shall answer in the following way, with the hope that these answers are useful to you.

  1. I think that it might be proper, in one sense, to say that there is an interface between an exposed glucose residue or molecule and the aqueous medium. This interface would be effective so far as adsorption is concerned.

  2. The question as to whether the interface between the aqueous medium and the particle of starch with glucose attached is really an interface between medium and glucose or between medium and starch is a matter of words.

  3. I do not believe that the interface could be detected by radiation, because its dimensions are not great enough in comparison with the wave length of light.

  4. Adsorption phenomena would be affected by the glucose.

  With best regards, I am

  Sincerely yours,

  Linus Pauling

  LP:jr

• Letter from LP to Mr. Edwin G. Newstead RE: informs that there will not be any additional graduate assistant appointments in chemistry and that he will not be admitted for graduate study. Note in pencil at bottom to cc Mrs. Augé [Filed under LP Biographical: Academia: Box 1.017, Folder 17.2]
• Letter from LP to Mr. Robert W. Hawley RE: informs that there will not be any appointments of graduate assistants in chemistry but offers a position on a full-time confidential war research project. [Filed under LP Biographical: Academia: Box 1.017, Folder 17.2]
• Letter from LP to Prof. Gilbert N. Lewis, Department of Chemistry, UC Berkeley, RE: Sends samples of lycopene prepared by Zechmeister and instructions for their treatment. Adds that he and AHP hope to be able to accept Lewis' invitation to stay with him when they are North. [Letter from Lewis to LP February 17, 1944] [Filed under LP Correspondence: Box #216.1, file:(Lewis, G.N. Correspondence)]

• Letter from E. Brand, Secretary, Division of Biological Chemistry, to LP. RE: Asks for advice on the topic of detergents. [Filed under LP Science: American Chemical Society: Correspondence, 1943-1948: Box #14.003 Folder #3.1]
• Letter from LP to Prof. H. I. Schlesinger, Dept. of Chemistry, University of Chicago, RE: Gives Horace Russell's confidential address and states that the outer envelope should be addressed to “Mr.” rather than “Dr.” [Letter from H. I. Schlesinger to LP December 14, 1943] [Filed under LP Correspondence: #357.7]
• Letter from Linus Pauling Jr to AHP RE: Wishes her a most happy birthday and wishes he could be there. Regrets not finding a present for her, he missed “Daddy's helpful hints and pocketbook” Would have liked to call or send a telegram on the 24th but he will be in the hospital. [Filed under LP Biographical: Personal & Family, Family Correspondence: Linus Carl Pauling, Jr. 1930-1944: Box #5.036, Folder 36.4]

  December 21, 1943

  Dear, sweet Mom,

  A most happy birthday to you. I wish very much that I could be there to enjoy it with you. My only sorrow is that I failed to find a present for you. I missed Daddy's helpful hints and pocketbook.

  I had intended to call in to send a telegram on the 24^th but I'm afraid I'll be incarcerated in the hospital over Christmas.

  I hope this letter reaches you in time to be of some use.

  Best wished for a happy and joyful birthday, dear Mom, from,

  your loving son,

  Linus

• Telegram from Dr. E. M. Billings, Eastman Kodak Company, to LP RE: Requests LP wire comments concerning Dr. J.C. Mouzon who graduated from Cal Tech in 1932 and has since been at Duke. [Telegram from LP to Billings December 23, 1943] [Filed under LP Correspondence: Box #111.1, file:(Eastman Kodak Company, 1938, 1940-1941, 1943-1944, 1951, 1957)]

• Chemistry 1b Freshman Chemistry Notice for Instructors concerning assignment, recitation, laboratory, and lecture outlines. [Filed under LP Biographical: Academia: Box 1.013, Folder 13.6]
• Letter from Henry Allen Moe, Secretary, Guggenheim Foundation, to Committee of Selection. RE: Shall begin to send digests. [Filed under LP Science: John Simon Guggenheim Memorial Foundation, 1925-1945: Box #14.013 Folder #13.18]
• Letter from Laurence L. Quill, Chairman, Dept. of Chemistry, University of Kentucky, to LP RE: Thanks LP for the suggestion of Dr. Max T. Rogers and states they will give him serious consideration. [Letter from LP to Prof. L. L. Quill December 10, 1943] [Filed under LP Correspondence: #335.7]
• Letter from S.M. Zeller, Chairman of the Biology Colloquium Committee to LP RE: Invites him to come lead the annual Phi Kappa Phi Biology Colloquium at Oregon State College, encloses a program from the last colloquium and mentions the informality of the discussions. Asks what honorarium would be expected, and hopes that LP can come. Enclosed: Program from the Third Annual Biology Colloquium. [Letter from LP to Zeller December 28, 1943] [Filed under LP Correspondence: 468.3]
• Note from Dr. Addis to LP RE: Presents a question about a philosophical manner of looking at the states of matter as applied to water presented by Collingwood in his book “Philosophical Method.” Wonders whether there would be a change in the ‘generic essence' of water when it changes from absolute zero to 100 ̊C. [Filed under LP Correspondence: Box #2.1, file:(Addis, Thomas 1940-1945)]

• Letter from F. W. Willard, Editor-in -Chief, to Board of Editors. RE: Informs them that Dr. C. S. Hudson is a suitable author for the monograph on the chemistry of sugars. Informs them that Dr. Evans name also came up. [Filed under LP Science: American Chemical Society: Correspondence, 1943-1948: Box #14.003 Folder #3.1]
• Letter from L. Crawford, Jr., University of Minnesota, to LP. RE: Informs him that Dr. Miller is looking for a teaching position. Asks if he could come talk to the Minnesota section when he comes to talk to the Chicago section. [Filed under LP Science: American Chemical Society: Correspondence, 1943-1948: Box #14.003 Folder #3.1]
• Letter from LP to Dr. Charles L. Parsons, Secretary, American Chemical Society. RE: Is pleased to learn of his election to Councilor-at-Large. [Filed under LP Science: American Chemical Society: Correspondence, 1943-1948: Box #14.003 Folder #3.1]
• Letter from LP to Mrs. J. Auge RE: States that he does not recommend to Mr. Thurston that he try to complete work for a doctorate here in twelve months because there are not enough courses offered during that time. [Filed under California Institute of Technology: Materials re: Division of Chemistry and Chemical Engineering, 1933-1963, No Date: Box #1.024, Folder 24.10]
• Receipt for receiving report on the study of the Pauling Oxygen Meter. Sent from Liaison Officer to LP.
• Telegram from LP to Dr. E. M. Billings, Eastman Kodak Company, RE: Responds with comments from Smyth and Watson on Dr. Mouzon. [Telegram from Billings to LP December 21, 1943, letter from Billings to LP December 24, 1943] [Filed under LP Correspondence: Box #111.1, file:(Eastman Kodak Company, 1938, 1940-1941, 1943-1944, 1951, 1957)]

• Letter from Dr. E.M. Billings, Business and Technical Personnel Director, Eastman Kodak Company, to LP RE: Thanks him for Smyth and Watson's opinions on Mouzon, who they are asking to work at their project in Tennessee. Sends holiday greetings. [Telegram from LP to Billings December 23, 1943] [Filed under LP Correspondence: Box #111.1, file:(Eastman Kodak Company, 1938, 1940-1941, 1943-1944, 1951, 1957)]

• Photo: Richard (Dick) and Ellen Morgan with their two sons Richard Jr. and Roger Morgan. “12/25/43 / Dick, Ellen, Richard, Roger. / Richard Morgan and family” Photographer unknown. Black and white print. [Ship #1537] [Filed under LP Photo Box:, 1943i.2]

• Letter from Dr. Edward A. Doisy to LP RE: Recommends to him F. J. Reithel, who has been working with Doisy on a Committee on Medical Research contract at Saint Louis University, and is looking for a permanent chemistry position on the west coast. [Letter from LP to Doisy January 7, 1944] [Filed under LP Correspondence Box: #96.6, file:(Doisy, Edward A., 1943-1947, 1952)]
• Letter from LP to Frank Capra, Lt. Col., U.S. Army Signal Corps Photograph Center RE: Discusses the properties of silicon hydride. [Letters from Capra to LP December 20, 1943, January 3, 1943] [Filed under LP Correspondence Box: #74.11, file:(C: Correspondence, 1944)]
• Letter from LP to Prof. Arthur B. Lamb, Editor, JACS, RE: Suggests that Dr. Sterling B. Hendricks would be a better reviewer of the book “The Optical Properties of Organic Compounds” by Alexander N. Winchell. [Letter from Lamb to LP December 15, 1943] [Filed under LP Correspondence: Box #191.1, file:(Journal of the American Chemical Society)]
• Letter from W. Bradford Wiley, Manager, Educational Department, John Wiley & Sons, Inc. To LP RE: Explains that they will publish a new fifth addition of “General Chemistry” by Horace G. Deming of the University of Nebraska and they will be sending him a complimentary copy. Explains further the revisions made and the popularity of the book among teachers, adds that they would be interested in his comments and criticisms. [Letter from LP to Wiley January 22, 1944] [Filed under LP Correspondence: 443.12]
• Program, Notes, Ancillary Material: Specificity of Intermolecular Interaction, American Physical Society, Pasadena, California. [Filed under: LP Speeches, 1943s.7]

• Letter from Dr. Harold P. Klug, School of Chemistry, University of Minnesota, to LP RE: Reports he has been named to a committee to help find a new president for the University. Asks LP's advice in what sort of candidate and qualifications they should have in mind for the position. Sends holiday greetings from the Klug family to the Pauling family and notes that the toy donkey AHP gave little Henry is still his favorite toy. [Letter from LP to Klug January 7, 1944] [Filed under LP Correspondence: Box #199.3, file:(Klug, Harold P.)]
• Letter from LP to Dr. M.S. Kharasch, Department of Chemistry, University of Chicago, RE: Agrees to meet with Dr. Stanley Wilson and help him find a position. States that they have no teaching openings at Cal Tech. [Letter from Kharasch to LP December 16, 1943] [Filed under LP Correspondence: Box #200.8, file:(K: Correspondence, 1943)] [Filed under LP Biographical: Academia: Box 1.017, Folder 17.2]
• Writes cheque to "Mira Loma Mutual Water Co.," $4.40. [Filed under LP Biographical: Business and Financial, Box 4.017, Folder 17.1]

• Letter from LP to Thomas Addis. [Filed under LP Correspondence: Box #2, Folder #1]

  December 29, 1943

  Dr. T. Addis

  Stanford University

  School of Medicine

  2398 Sacramento Street

  San Francisco, California

  Dear Tom:

  I have read carefully the quotation in your letter of December 22 from the book "Philosophical Method" by Collingwood. I have never thought much about philosophy, and perhaps if I had a better background his statements would seen more to me.

  My interpretation of Collingwood's statements may be faulty because I can not tell from this brief excerpt from his writing what words he has taken to represent undefined concepts, and which words he has defined in terms of these concepts. It seems to me that Collingwood speaks very loosely: thus in his second sentence he says that ice, water, and steam differ both in degree, as hotter or colder, and in kind, as specifically different states of the same body; but in my opinion the second part of this statement has no meaning, since every difference between ice and water or water and steam is only a difference in degree: ice is less dense than water, it is harder than water, its vapor pressure is different from that of water, and so on.

  I do not understand what Collingwood means by the generic essence of ice, water, and steam, unless he refers to conservation of mass or to the existence of molecules. Modem physical scientists try to avoid talking about anything except experiments and experimental results. One experiment which may be related to the generic essence is that one gram of ice can be converted completely into one gram of water or into one gram of steam—whether or not this shows that ice, water, and steam have a generic essence is not clear to me. Ammonium chloride can be converted by heating into a gaseous mixture of ammonia and hydrogen chloride; I am not sure that Collingwood would say that solid ammonium chloride and the gaseous mixture of ammonia and hydrogen chloride have a generic essence in common or not. Collingwood's final statement about all three forms being equally forms of water, each fully entitled to that name and all it implies, means very little to me, in terms of experimental operations, because I do not know what the term water implies other than the properties of ice, water, and water vapor, and the fact that the three phases are interconvertible.

  If I were ever to be in an argument with anyone as to whether there is a change in the "generic essence" of H₂O on going from absolute zero to 100°C. I would require first that a definition of the term "generic essence" be given. So long as this term has not been rigorously defined discussion of it is a waste of effort.

  Dr. Campbell and I think that the copper sulfate method of determining serum protein might be useful in connection with our animal work; could you tell me the title of the Rockefeller Institute publication on this subject which you showed me, and tell me where we should write for a copy?

  I enjoyed my day with you very much, Please tell Mrs. Addis that I thank her for having me to dinner, and that, when I counted up my grams of protein for the day, I saw that I should have taken her advice in accepting the baked apple for dessert instead of pudding.

  Sincerely yours,

  Linus Pauling

  LP:jr

• Letter from Linus Pauling Jr. to Ava Helen Pauling. [Filed under LP Biographical: Personal & Family, Family Correspondence: Linus Pauling Jr. Box #5.036 Folder #36.4]

  December 31, 1943

  Dearest Mom,

  I was overcome by a veritable deluge of letters today. Zechmeister's books came today, too. I enjoyed them very much.

  I made a mistake by telling you I was sick. It was very foolish of me. Especially at Christmas time. I'm still in the hospital, but I haven't had any fever for over a week. The Red Cross is certainly magnificent. The women make life bearable by bringing books around to the wards. They furnished presents for everyone in the hospital. Christmas was really quite enjoyable even though I didn't go to see Mrs. Sturdivant. She sent me a very nice package of sugared pecans and dates with nuts in them.

  I can't see how you can run the house and work too. I'm worried about your overworking yourself.

  I'll tell the doctor about my susceptibility to Brights Disease in the morning. I am slightly worries about my inability to get rid of this cold, but I have noticed no symptoms of any kidney trouble. Perhaps it will get me out of the army (an idle dream, I'm afraid).

  I take a good shower every night when I'm in barracks, Not so often in the hospital. My face is not much worse, if any, than it was in Pasadena. Surprisingly I haven't gained any weight to speak of. Oh for my idle college days when I weighed 150 pounds! That's a good index of the amount of work I did. In the army I'm so tired that I sleep like a log from 9 to 5:30. In the hospital, of course, I sleep during the day, too, so my sleep isn't so deep.

  You mustn't worry about me, Mom.

  Your loving son,

  Linus

  P.S. I've been horribly lax about writing.