UNIVERSITY of PENNSYLVANIA

PHILADELPHIA 4

The School of Medicine

DEPARTMENT OF MICROBIOLOGY
December 1, 1958

Dr. Joshua Lederberg
Department of Medical Genetics
University of Wisconsin
Wisconsin, Illinois

Dear Josh:

First, congratulations on the big award.

Second, I would like to endorse the enclosed invitation from the
Phi D. E. fraternity. The invitation is self-explanatory and I do
hope that you will be able toaccept.

The medical students at Penn have always shown a keen interest in
microbial genetics. They are interested in your work and you certainly

will be well received by students and faculty.

If the date is inconvenient the lectureship committee is prepared
to change it to best fit your plans,

Hoping that you accept,

Sincerely,

Joseph $. Gots

JSG:em
Enc.