CARNEGIE INSTITUTION OF WASHINGTON

DEPARTMENT OF GENETICS

COLD SPRING HARBOR, LONG ISLAND, N. Y.

June 2, 1955

Dr. Joshua Lederberg
Department of Genetics
University of Wisconsin
Madison 6, Wisconsin

Dear Joshua:

I am sorry to have delayed sending you a copy of our date as I
promised, but work connected with the Symposium is keeping me plenty
busy at present. Enclosed are the data from a four-point experiment.
I assume that you are familiar enough with our system of nomenclature
to be able to decipher them,

I would like it very much if you could visit us this summer and
give seminar talks, one at the phare course and one at the Bacterial
Genetics course. The phage course ends on July 9 and the Bacterial
Genetics course begins on July 13. If you could spend about a week
here around that time, we could arrange things so that you could give
two seminars, Of course we would be very happy if you could stay
here longer, The Biological Laboratory is ready to pay your travel
and living expenses,

With best regards,
Sincerely yours,
SLA

MDsaf M. Demerec
tnelosure