Activity Listings
- Letter from James S. Thompson, Vice President of the McGraw-Hill Book Company, Inc., to LP, RE: Notes that LP has not replied to his letter from February. Asks about the status of LP's manuscript. Informs LP that they just published books by Dr. Houston and Professor White. [Letter from LP to Thompson, 4-17-1934] [Filed under LP Personal Safe: Drawer 3, Folder 3.005.10]
- Letter from LP to Dr. W. E. Bleick RE: Points out to that he has overlooked Sherman's treatment of the proton affinity of ammonia in his extensive discussion of crystal energy. Also, asks if he has completed any unpublished X-ray work, causing this disagreement of work published by Sherman? [LP Books, 1939b.2]
- Letter from LP to Dr. W. E. Bleick, Institute for Advanced Study, Princeton, NJ. [Bleick's reply May 1, 1934] [Filed under LP Books, 1939b.4]
April 12, 1934.
Dr. W.E. Bleick,
Institute for Advanced Study,
Princeton, New Jersey.
Dear Sir:
I wish to point out that you have overlooked Sherman's treatment of the proton affinity of ammonia in his extensive discussion of crystal energy (Chem. Rev. 11, 94-170 (1932), especially pp. 150-152). Using the same method as yours, except for the small van der Waals term, he obtained 206.8 kcal/mole, in nearly exact agreement with your 206.4. Of course there is considerable cancellation of errors in any such treatment.
I know of no justification for your statement that one of the four neighbors of an ion in NH4F is closer to it than the other three. The only structure investigations with which I am familiar place the value of the parameter at 3/8. Have you done some unpublished x-ray work, causing you to disagree with my explanation of the 14 kcal excess crystal energy of the substance (published by Sherman on p. 152) ?
Very truly yours
[handwritten] LP
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April
12, 1934
