June 5, 1961

Dr. Stanley L. Miller

Schoo! of Science and Engineering
University of California, San Diego
La Jolla, California

Dear Stan:

Sorry to have been so hard to reach. There was a combination of
circumstances.

Moscow: we were interested in (1) who might be going to the Congress
anyhow, (2) who might be persuaded to go If an urgent need arose. There Is a
very small chance that the Russians might agree to an Informal discussion about
plans and experiments in planetary biology, and if so we might want to organize
a delegation on short notice.

<
| agree with you about the importance of a hygrometer and that we ~
should back up the gas chrom@tograph. If weight allows the IR plus the mass ~
spectrograph would do the best Job. If not, as seems most likely, wa should r
look for a simpler method. what would you recommend for readings down to, i
say, 0.1% relative humidity? § will certainly re-echo this wherever appropriate. &
Do you know the Conrad-Carson device? “sow
: ts
Yours sincerely, -
™

Joshua Lederberg
Professor of Genetics

ene: TX