CALIFORNIA INSTITUTE OF TECHNOLOGY
PASADENA
a

KERCKHOFF LABORATORIES
OF BIOLOGY

January 12, 1950

Dr. Joshua Lederberg
Department of Genetics
University of Wisconsin
Medison, Wisconsin

Dear Dr. Lederberg:

I have just received the package of reprints on "Bacterial
Variation.” I have distributed them according to the initials
in the corner, The extra one I have given to Sterling Emerson.
Thank you very mich for sending these.

With best regards, I an,

Sineerely yours,
Tasrods

G, W. Beadle

GWBspr