kL be. € e & a he ao Bie gat! gees WASHINGTON UNIVERSITY ST. LOUIS 80, MISBOURI DEPARTMENT OF ZOOLOGY August 25, 196) Dr. Joshua Lederberg Department of Genetics Stanford University Medical School Palo Alto, California Dear Joshua: I wish to thank you for sending me a copy of the letter you wrote to Silvio Varon. He was very pleased at the idea of joining soon your group and also I am glad this Ls possible. I very much hope this will prove to be satisfac. tory for you, as well as for him, Very cordially yours, Rita Levi-Montalcini RIM: 1tf£ IMP) Jrepuo ys - laa