Pustic HeattH LABORATORY SERVICE

(Directed by the Medical Research Council for the Ministry of Health)
Standards Laboratory
CENTRAL PUBLIC HEALTH LABORATORY
COLINDALE AVENUE
LONDON, N.W.9

7th, April 1952

Telephone: COLINDALE 6041-4081
Telegrams: DEFENDER, HYDE, LONDON

 

Dear Professor Lederberg,

Thank you very much for your letter of March 28th. Anderson
had told me you were full up until the fall and I was hoping that you
would be able to take me then, I realise that you have to consider
your own people first but as far as I am concerned crowded laboratories
are no novelty, my present bench space being exactly 21 x 3', If it
is possible for you to fit me in sometime next October - November with
“out inconvenience this would be the best time for me, Another point
is that my fellowship applies to this year and would, I think, have to
be started before the New Year, However, if this is impossible I shall
try and arrange to come next March,

I have already started to collect auxotrophic salmonellas because
the typhimuriunxpotsdam cross presents some anomalies that I cannot clesr
up and I wanted to check it with an independent set of markers. So far
I haven't been able to show any antigenic recombination. Your suggestions
as to possible problems are very interesting. Possibly the best thing
I can do now is to prepare as many auxotrophis as I can of the common
types of Salmonella and then follow up any cross which seems particularly
interesting or hopeful. What I wish to avoid is repeating work that
has already been done in your laboratories, I am in a very strong
position here for getting hold of the organisms as we make all the standard
Salmonella diagnostic antisera in this laboratory and we have the British
Salmonella Reference Laboratory at the end of the passage.

IT am very grateful to you for offering to have me at your lab.
and I lock forward to hearing when it will be possible,

Yours sincerely,
Professor J,Lederberg, eoepocot

Genetics Department,
University of Wisconsin,

Madison, 6, P.s. “Ble (Heayeo Low yoo SOK we

Wisconsin, U.S.A.

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