To the Science Congress of the Tenth Anniversary Congress of the National Council of American-Soviet Friendship:

It is a matter of deep regret to me that the distance from Pasadena to New York and the difficulties of present-day travel prevent me from speaking before the Science Congress on the subject of Soviet chemistry. I send to the Congress of American-Soviet Friendship this expression of my sincere hope that the Science Congress will represent only a first strand, even though an important one, in the ultimate cable linking science and medicine in the Soviet Union with the fields in the United States. The need for cooperation between the U.S.A. and the U.S.S.R. is as great in chemistry as in other sciences. We know from the limited information which has reached us that the work in chemistry carried on in the past few years in the Soviet Union, is characterized by the same untrammelled spirit of bold, imaginative exploration of the unknown which has evoked the recent American discoveries in chemistry, and we can be assured that great and rapid progress could be made by the whole-hearted, open cooperation of the scientists of the two countries. Let us look forward to a future when American scientists, in large numbers, are lecturing and working in Soviet laboratories, American students are studying in Soviet universities, and Soviet scientists and students are in America in equal numbers, carrying the most inspired teachings of each country to the other.