CARNEGIE INSTITUTION OF WASHINGTON
DEPARTMENT OF GENETICS

COLD SPRING HARBOR, LONG ISLAND, N.Y.

October 21, 1952

Dr. Joshua Lederberg
Department of Genetics
University of Wisconsin
Madison 6, Wisc.
Dear Joshua:
Please note the P.S. to Lwoff's
letter. Perhaps you will send him what he

wants. Best regards to you and Esther.

A. D, Hershey

Enclosure