COMMITTEE ON BIOPHYSICS

THE UNIVERSITY OF CHICAGO
§640 ELLIS AVENUE
CHICAGO 37 * ILLINOIS

March 22, 1956

Professor Joshua Lederberg
Department of Genetics
College of Agriculture
University of Wisconsin
Madison 6, Wisconsin

Dear Josh:

I have been meaning to write to you and Esther to thank you for all
your kindness during our recent visit to Madison.

I have heard from Jacob that he has no objections to my releasing the
tumefaciens mutants. When I return from California I will send you them.
I will probably also give them to Dick Klein, although I am quite angry with.
him,
Best regards to Esther and the Crows.
Sincerely,

Aaron Novick

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