THE UNIVERSITY OF WISCONSIN
COLLEGE OF AGRICULTURE

Madison 6

DEPARTMENT OF GENETICS

March 19, 1957

Dear Esther and Josh,

You have had a flood of mail, but none of it appears to me to require
your immediate attention. I did give your itinerary to two people,
G. Le Cantoni (who wants you to give a series of lectures in Bethesda)
and George Kleine Klein's letter was very interesting and I couldn't
resist reading it several times. For one thing he wants you to help him
organise a program on transformation, transduction, ami recombination
for the International Congress of Microbiology in Stockholm in 1958,
and of course to attend. The other point is that his mtation detecting
system described in Nature a few months back (1.6. gmumimg transplanting
heterozygous tumors to parental hosts to give a selective advantage to
mutants making the tumor homozygous) has worked 5 times, all to H~2
though with none to H-2%,

Bowers told me that the applicstion for a symposium in medical
genetics has been approved by the granting agencys

We had an excellent talk and exciting discussion with Medawar. I'11
tell you the details when you come backe

Enclosed is a cony of the action taken by the Department last week.
Ve are having a meeting tomorrow for further discussion. Nothing else
has happened to my knowledge.

I hope you are having some relaxation. Rega “ds to you both.

Sincere y,