October 8, 1949.

Dr. T. R. Hogness,

Director, .

Institute of Radiobiology & Blophysics,
University of Chicago,

Chicago 37, Dlinois.

Dear Dye. Hogness:

The title mentioned in your letter will do nicely, although I hope
to be forgiven if 2 stray a little from the indicated subject.

I expect to arrive in Chicago Thursddy evening, November 3; I have
already made arrangements through Dr. Novick for accomodations. If I
contact you at tha Institute, Friday morning, thers should be sufficient
time to make any last minute arrangements. I expect to have 3x 4 lantern

slides, if a projector is conveniently available. ”
Sincerely,

Josmia Lederberg