HARVARD UNIVERSITY

DEPARTMENT OF CHEMISTRY

12 Oxford Street
Cambridge 38, Massachusetts, U.S.A.

March 20, 1959

Dr. Joshua Lederberg
Stanford University
Stanford, California

Dear Dr. Lederberg:

My colleagues in the Chemistry Department and I are most
grateful to you for the thoughtful letter you have sent us about
Dr. Francis/Crick. Your opinion has been of the greatest help

for our decision to offer a Professorship to Dr. Crick.

With best regards.

Sincerely yours,

Konrad Bloch
KB/gl