THE ROCKEFELLER INSTITUTE
FOR MEDICAL RESEARCH

66TH STREET AN° YORK AVENUE

NEW YORK 21, M. Y.

May 12, 1954

Dear Lederbergs;

It occurs to me that you might
find useful a gadget which I devised and
employ regularly for the isolation of zygotes,
vegetative cells and microcclonies. 1 des-
scribed this implement in MGB but since you
remarked that you never read it, | will sali
your attention to MGB #7, page 55. st seems
to me the description is complete enough,
but probably lacks dramatic appeal. wo Tl
will add the fact that babies cry for them,
visitors to the lab take them away for souvenirs,
and that for the purpose of transporting single
cells from agar to angwhere else, a dozen of
them mounted on a plastic block, represent a
cheap and effective substitute for any micro-
manipulator.

The purpose of this note, however,
is really to tell you how much I enjoyed the
first advances towards friendship and beyond
a mere nodding acquaintanceship made at Oak
ridge. I hope you do come to Woods Hole this
summer and that this process may there be
continued,