es
WASHINGTON Sera
SCHOOL OF MEDICINE
SAINT LOUIS (10), MO.

 

UNIVERSITY

 

 

 

DEPARTMENT OF BACTERIOLOGY AND IMMUNOLOGY
EUCLID AVENUE AND KINGSHIGHWAY

August 14, 1950

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

Dear Dr. Lederberg:

I recently obtained from Dr. A.D. tiershey, wno nas since
left Washington University, cultures of two organisms wnich
I believe he said he had originally obtained from you. ihe
cultures are designated Salmonella typhimurium SW 13 and
Salmonella gallinarum SY 36. The former strain is lyso-
genic, liberating a phage which is active against the S.
gallinarum strain. Since I nave not found any reference

to these strains in the literature, would you be kind
enough to inform me whether 1) you nave published any work
pertaining to these cultures or 2) you are aware of any

other references,
In case I am mistaken about the source of the cultures, I

hope you will forgive me for having presumed upon your time.
Thanking you in advence for your information, I am

Yours very truly,
oeucer J. adlow

(Mrs.) Louise T. Adler