SEP 2 4 1965

DEPARTMENT OF BACTERIOLOGY AND IMMUNOLOGY
HARVARD MEDICAL SCHOOL
25 SHATTUCK STREET

BOSTON, MASSACHUSETTS 02115

September 22, 1965

Dr. Joshua Lederberg
Department of Genetics
Stanford University
Stanford, California

Dear Josh:

The illustrations of which you sent me Xerox copies last month
are indeed the ones I am after, and I do hope that you will be able to
unearth the negatives,

With best regards,

Sincerely,

ao

Crcetee

Bernard D. Davis
bdd/b

SiMid A