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THE JOHNS HOPKINS UNIVERSITY

BALTIMORE 18, MARYLAND

MERGENTHALER LABORATORY October 16, 1957

FOR BIOLOGY

Professor J. Lederberg

Department of Genetics

University of Wisconsin
Madison 6, Wisconsin

Dear Dr. Lederberg,

Thank you very much for forwarding to me three
stocks of g. coli K12 which I recently requested. The
ferment:.tive properties of the strains are now being
checked. They will be used both to demonstrate one
aspect of the general process of fermentation, as well as
the idea of active transport in cells....before the
general biology classes here.

Sincerely yours,

  

hilip &. Hartman

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