NEW YORK STATE COLLEGE OF AGRICULTURE -
CORNELL UNIVERSITY

ITHACA, NEW YORK

 

LABORATORY OF BACTERIOLOGY

January 8, 1954

Dr. Joshua Lederberg
Genetics Department
University of Wisconsin
Madison 6, Wisconsin

Dear Josh:

You may remember while we were visiting at San Francisco
that I mentioned that I did not have crossing strains of K-12
and that I might trouble you to obtain same some time in the
future. A couple of the graduate students here would like to
use K-12 for some of their work so if you would be kind enough
to send some crossing stocks of K-12, I would greatly appreciate
it. I have no particular strains in mind, but it would seen
that W-1177 and 58-161 would be suitable, It might also be de-
Sirable to receive one of the segregating diploids such as H-226
if you have some of them readily available.

Things are going relatively slowly here: Dr, Sherman
has been out of the office for roughly a month, but is coming
along pretty well now. The wife's father is very ill, which
kind of ruined our holiday season, but the little girl makes
up for a lot of this. I had a nice visit with Irwin at Boston
and had hoped to see you there,

Many thanks for the stocks, and please greet Esther
for me.

Very truly yours,

jpeg,

M. R. Zelle
Professor of
Bacteriology