Copies a Mr F. JACOB

Mr J. MONOD November 30, 1956

Professor J. Lederberg
Department of Genetics
University of Wisconsin
Madison, Wisconsin
U.S.A.

Dear Josh :

1) Thank you for your letter of November 21 which enabled me to
discuss with Monod your visit in concrete terms of time, space and ...
money. Our means are very modest, but here is what we can, and would
like, to do. We have a modest fund for covering the expenses of some
foreign speakers at our "Cell physiology club" (which is at present
run by Francois Jacob). One of the provisos of the fund is that the
invited speaker is to spend a few days in Paris in order to have the
Opportunity of private? discussions with some parisian collegues. We
hope that it will be possible for you to accept this invitation to
spend a few days in Paris and.to give a talk sometimes in March.

To cover the expenses of your and Esther's trip.cid visit we
will be happy to offer you 60, 000 francs.

If you accept, please, let Fransocis Jaccb know your décision
and tentative shedule.

2) In connection with Wright's results, we too have great doubts
concerning the existence of completely neutral petites at the cellular
level. This is one of the problems we are working on now.

3) I would be grateful for letting me know whether the ex-segrega-
tional petite B26 which I sent you some time ago still contains the
recessive r.

Hoping to hear from you soon, and with kind regards to both of you,

As ever,