ARMY MEDICAL SERVICE GRADUATE SCHOOL

WALTER REED ARMY MEDICAL CENTER
WASHINGTON 12, D.C.

IN REPLY REFER TO MEDEC}-Z IEP 30 vuly 1953

 

Professcr Joshua Lederberg
Department of Genetics
Colleze of Asriculture
University of Wisconsin
Madison, Wisconsin

Dear Joshua,

I have just read the letter you sent to Tom Courtenay and I may
possibly be able to clear up the situation.

On my return from Cold Spring Harbor, I hac these cultures sent to
you alon:; with a letter which I assumed was to be enclosed with the cul-
turese

In the enclosed letter, I mentioned thet I was unable to obtain any
further information as to the history of the Fara B cultures N 25 and
N 97 as you requested, I did manage to convey your message to Dr. Weed
and I suspect that he has sent you the materials you wished. As to the
eultures [ 139 and D 1909/52, these are supposedly EB. coli strains which
contain the IX somatic factor, D 139 was isolated by Van Oge in the
Belgian Congo from a patient with a typhoid-like syndrome (Ref. Ann,
Instit. Past. 8, pee 684, December, 1951). D/1909/52 was isolated by
Vandepitte in the Belzian Congo and also reacts in IX serum. I had the
impressior that ,ou said ;ou might be interested in examining these cul-
tures when I last saw youe

In any case, I would like to say that I certainly appreciated your
kind hospitality durin; my visit to your laboratory.

Please give my best regards to your wife and to Boris Rotman whom I

understand is now at “isconsin.

Sincerely yours,

Louis %, Baron
Dept. of Bacterial Physiolo:y
Immunology Division

LSB/rp