July 9 1962

Mr. R. C. Peavey, Executive Director
Space Sclence Summer Srudy

Stete University of lowe Librery
lowa City, lowa

Dear Mr. Peavey:

As you know, | have not been able to attend either the Biology
sessions or the International sessions of the Space Science
Summer Study. | will also be unable to attend the Space Probe
Sterilization discussions scheduled for July 26 and 27. However,
| have ta)ked with Or. Brown on the telephone, and he is fully
apprised of my views. We wil! keep in contact In that way.

Yours sincerely,

Joshua Lederberg
Professor of Genetics

JLiedf