Columbia Bniversity
inthe City of Sete Dork

DEPARTMENT OF ZOOLOGY

April 4, 1956

br. J. Lederberg

Department of Genetics

University of Wisconsin College of Agriculture
Madison, Wisconsin

Dear Josh,

During the first half of May I shall be at Cornell from
the lst to the 4th and at Yale on the 9th. We will be moving
to Cold Spring Harbor about the 15th. In the second half of
May the only engagement is on the 25th. If it were convenient
for you, perhaps the period between the LOth and the 15th of
May would suit me better than the second half of the month.

I shall see Luria at Cold Spring Harbor and Levinthal at
Ann Arbor in July on my way to work with Dulbecco. This leaves
only Bloomington as a must. I wonder whether a visit to you
and Bloomington (both Sonneborn and Muller) can be arranged as
a tour. I am not clear at all about the transport position.
Much obliged if you could act as impresario as you suggested.

It 1a very kind of you to offer hospitality. Looking
forward to seeing you.

Yours sincerely,
\
é ce

G. Fontecorvo

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