November 25, 195
Air Mail

Dr, il, Ay Hildinger
Institute fir -:ikrobiolorie
der Coethe-Un versitat
Frankfurt / Hain
Siesmayerstrasse 70

West Gernany

Dear Dr, Hildinger:

Professor ‘atum has passed on your request for
pyridoxinless mutants of ©, coli to me. I regret that
we do not have any such mutants in our stock collections,
Hovever, I am forwarding your request to Pro essor
Sernard Davis at New York University in the hope that
he will be able to accommodate you better,

Yours sincerely,

Joshua Lederberg
Professor of Genetics

JLenhn