October 19, 1939 My dear Professor: I want to thank you for recent letter and the most interesting and important enclosure. I found this data of such import that I have convened a Board consisting of the head of the Bureau of Standards and a chosen representative of the Army and Navy to thoroughly investigate the possibilities of your suggestion regarding the element of uranium. I am glad to say that Dr. Sachs will cooperate and work with this Committee and I feel this is the most practical and effective method of dealing with the subject. Please accept my sincere thanks. Very sincerely yours,