DEPARTMENT OF THE ARMY
WALTER REED ARMY INSTITUTE OF RESEARCH
WALTER REED ARMY MEDICAL CENTER
WASHINGTON, D.C. 20012

REPLY TO
ATTENTION OF:

 

June 25, 1973

Dr. J. Lederberg

Dept. of Genetics

Stanford Univ. Sch. of Med.
Palo Alto, Calif. 94305

Dear Josh:

I saw Gan at the ASM meeting and mentioned that I was intrigued
enough by your comments on the Proteus OX strains to examine
them for satellite bands or circles. We were unable to find any-
thing even after fractionation of material on the light side,
The other obvious possibility of phage involvement is a bit

a blind alley; although the strains are inducible we haven't
seen any plaques on any of the plating strains we used. I don't
know of any way to establish transformation as a possibility;
homology studies are unlikely to be of much significance.

L£

OL

I realize that negative results aren't very stimulating, but J
would be very interested in any comments you might have or any

suggestions.

 

With best regards,

L. 5S. BARON
Dept. of Bacterial Immunology