Lb Manuscripts Department, Lilly Library Indiana University, Bloomington, Indiana eonneporn mss. 24ib9 MGAUGL idl _ Ls covered by copyright and may not be quoted or reproduced without FR NR RMN Ne de BONN NN LY 8 of copyright holder, Br. H. Demerec Carnegie Institute of Washington Cold Spring Harbor Long Island, New York Dear Dr. Demeree;: achievement. I think it i must be very proud of her, But now, the news I he and told me about your success by means of carcinogens, deserve special congratula With very best wishes, permission TMS: at April 5, 1947 I have been wanting to write to you for you on your daughterts 8 great stuff, ar about you is even more exciting. Muller Just got back from New York with mutation induetion This is one of the MOBt exe citing things I heard for a long time, tions for it, a nd I wish yon the very best of luck iin following up th is great lead, Cordially yours ’ f. Me Sonneborn