November 15, 1954

Professor H. Ris
Birge Hall ~ U-wihg

Dear Hans:

I want to take this opportunity to thank the Research Comittee and the
allocation committee for the Marine Biol. Laby. (Woods Hole) "scholarships"
for making possible my use of the facilities there last August. The month was
a very profitable experience, especially as there happened to be in residence
at the same time many of my colleagues, working in microbial genetics, from
other institutions. In addition to these conferences, and the opportunity to
fill in gaps in library work, the occasion also helped Professor Sonneborn (from

Indiana University} and myself to lay definite plans for the writing of a deffbitive
treatise in this ffeld.

Yours sincerely,

Joshua Lederberg

Professor of Genetics
P.S. Fortunately, the hurricane (Carol) arrived

only as we were preparing to leave.