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