The University of Chicago

CHICAGO 37, ILLINOIS

 

Department of Bacteriology and Parasitology

8724 ELLIS AVENUE

October 14, 1946

Dr. Joshua Lederberg

Yale University

Osborn Botanical Laboratory
New Haven, Connecticut

Dear Dr. Lederberg:

Thank you for your letter of October Sth. I hope
that the reprints will be of some use to you.

We have carried out relatively extensive studies
on some of the other more common Salmonella types such as
para A and para B and so far as our experience goes these
forms have very simple nutritive requirements. We have not
found it necessary to include amino acids or other organic
sources of nitrogen, and most of the strains have grow
in solutions containing acetates as the only source of
organic carbon. At our entry into the war I found it
necessary to put these and related studies on the shelf,
for I have devoted all of my time to research on Asiatic
cholera on 0.5.R.D. contract. I am hoping that now I
shall be able to go back to this interupted work and get
these studies under way again while at the same time
tying up the loose ends of the cholera investigations.

Thank you for your kind remarks regarding my revision
of Jordan's Bacteriology.

I am

Sincerely yours,

Pre naan

William Burrows

WB: eg °