THE UNIVERSITY OF CHICAGO
CHICAGO 37+ILLINOIS

DEPARTMENT OF MEDICINE

Merch 7, 1951

Dear Dr. Lederberg:

Thank you fer your letter of the lst raising
the question of the possibility of typing our mouse strains of
E. coli. I assume that you mean typing by means of phage. I
had not thought of this because it is a technique I do not use
myself.

Do you think we ought to try it?

Sincerely yours,

.

. a
pen, t

C. Phillip Miller

CPM: 1k

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

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