May 7, 1956
Dear Bentley:
Thanks for the two books (Feldman; Kluyver-van'iiel) just received.
My own consclence had been bothering me about the reviews sti11

owing and I am sorry to learn the next deadline is so far ahead. I made

the mistake of preparing them all at once, instead of ones ata time, but
I8l. be sure to have the reviews by August.

Thanks ,

Joshua Lederberg
P.S. Have you had any further thoughts, or more
concrete notions, about a Biological Dictionary