Department of Genetics
University of Wisconsig
September 22, 1952

Dear Spicer:

I am glad to hear that you have arranged passage, although your early
arrival (which is most welcome, let me assure you) will put somewhat of
a strain on our working facilities, as I have indicated previously. I hope
this letter reaches you in time; I had hoped we would have an oppor tunity
to discuss various materials that it would be desirable for you to bring
along. In particular we are very short of sera, and have very prdmitive
facilities for rabbit culture, and too little time to bother too guch
making our own. If it were possbh@e for you to bring along a reasonable
set of diagnostic H sera, and O sera for antigens I, If, IV, IX, XII, III-x,
VI-VII ami VI-VIII, theyy would be very useful for the work you would be
doing here. I believe that you indicated you had ready access to such
preparations. If we could obtain several ml eack of undiluted sera for
the H factors a, b, 1,2,3, enx, r, amit gm, and k, 1,5 these would also
be extremely desirable, to supplepemt our own very meagre preparations,
I have received any number of these things from Edwards and his collaborators
but I hesitate to strain their generosity any more than absolutely necessary,
if you have an alternative source.

While you are on the east coast, why don't you consider a few visits
to the people working there. In New York City, I am sure you would find
Dr. Zinder (my erstwhile student and collaborator on the Sal monella studies)
most pleased to talk to you, and suggest others in that area whom it would
be profitable for you to visit. Dr. Zinder is now at the Rockefeller Institute
of Medical Research, E. 66th Street and York Avenue.

If you will notify me precisely when and how you plan to arrive, I will
try to arrange to have you picked up, and for temporary accomodations. (If
you fly, the limousine can drive you directly to this building.) My phone
number is 5-3311, Ext. 4217; afterhours: 5-5289.

With best wishes, hon voyage, etc.,

Sincerely

Joshua Lederberg

cc; ¢/) Dr. M. F. Haralson, Regional Office #.H.0.