ane us

University College London - Gower Street WC1

a : Department of Zoology,
Hola — 1st March 1960.
Professor Joshua Lederberg,
Department. of Genetics,
Btanford University Medical School,.
Palo Alto, mo,

California,
U.S oAe

Dear Joshua,

It was extremely good of you to send your tolerance
article so promptly. I wish I could reciprocate by sending you
a Harvey Lecture, but I am sorry to say that I simply haven't
got one left = not even my own copy for reference.

To my great regret I shan't have time for a visit
to the West coast on this occasion, but I would like to file
your letter away for my next visit, and get in touch with you
then. The point is that the Harvard people insist on my being
“in residence" for at least two weeks during,the delivery of
the Dunham Lectures- which is fair enough, really, but it means
I can't get around as I should otherwise have liked.

I shall shortly be sending you a copy of my Reith
Lectures, the last of which consists of some reflections on your
antithesis between instructive and elective interpretations of
various forms of biological reactivity. The lectures are
supposed to be published in about a month's time.

All good wishes,

Yours,

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