December 19, 1952

Dear Professor Faure—Fremict:

Recently, an abetrect has come to my attention on your work on endoeymbiloses
in pretusoa. I would appreciate it if you Bould Beep me infommed of progress
in this fisld through your publications.

Uncer separats cover, I am sending a reprint of a recent review which may
be of inierest to you in this connection.

Yours ainccrely,

Joshua Lederberg
se@ecceiete Profasacr cof Genotics