Memo from
JOSHUA LEDERBERG

oO.
Torbjorn Caspersson

FEB 16 1971

My faults as correspondent.

You were good enough to send me early copies
of your. papers on fluorescent staining of
chromosomes. I don't have to tell you what an
impact they are having on human cytogenetics!
Please don't misinterpret my negligence in res-
ponding to your note as anything other than that.
I was most interested in the publications and
much appreciate your having sent them.

You may know that Elliott Levinthal and
Len Herzenberg are pushing the "Cell Separator"
matinine to what bexx soon be a useful threshold.
dy own intéyests in automation these days are
foctssed_op/ 'mechanized inference! (the DENDRAL
system) and its application to organic analysis
by GLC and mass spectrometry. I will send you
some papers shortly. We are also trying to em-
body some of this in a system for large scale
screening of body fluid samples for metabolic
idiosyncrasies expressed in qualitatively in-
teresting outputs (contra the usual clinical
chemistry on quantitative measures of a few
well known metabolites.)

  

I am sorry it has been so long since we have
had a chance to talk.

All best wishes,

 

i. PROFESSOR JOSHUA LEDERBERG
\ . Department of Genetics
f School of Medicine
Q 4 Stanford University
. \ ‘ Stanford, California 94305