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Psychological Shudics May 14, 1974

Dr. Joshua Lederberg
Department of Genetics
School of Medicine

Stanford University
Stanford, California 94305

Dear Josh:

It was quite an experience to be told by Luca when I called
him last week, that a baby was born to the Lederbergs the day
before. You must already have the letter Evy wrote expressing

our great pleasure at the news. Congratulations and all best x
wishes! 4 /

In your new condition are you able to look at a draft of
a paper reporting the first findings of our study of XYY and
XXY men? The paper covers the results of the case-finding work
to this point and the data thus far available from the social
records. If you can spare the time, and find yourself able to
think about such mundane matters, I would be most grateful for
your critical reactions to the paper. In any case, I think
you will find these first results quite interesting. If you do
read the paper, think back as you do so, to the night in your
house six years ago when we first discussed the XYY phenomenon.

Our love to all four Lederbergs.

Cordially,

Herman A. Witkin
nan EE:

HAW: gn
Enclosure