Wolfram Heumann Febr.2.l964
Braunschweig
Humboldtstr.1.

Professor Dr. Jd Lederberg
Dpt. of Genetics,stanford Jniv.
Stanford, California.

Dear Joshua!

The investigation in starformers is now in 4 pxm point that
should be reached in end of 1957. Genetical exchange is regularly
observable and easy demonstrable.This is the resuit of your scien-
tific instructhon and your kind hospitality in vour lab in.
Madison. The fruit need Long time to ripe long enough for many
uncertaintys and hesitations. I would be very happy if I could
ask you for the opportunity to try the reliability of an experi-
ment with starformers. Everybody in your lab can do the work
with your governing in a fortnight and I hope it would: not moleste
you very much. Please let me now if you agree,than I will send
you by air mail the strains and a precise working instruction.

T have good contact with Professor Kaplan in Frankfurt and I
will ask him for the same favour. ,

ag I have written to you in December +96v I am in contact
with the C 5 I RO in Canberra. Since Bob died they asked me
to apply for a position in microbial genetics in the C 5 IRO.
You now that Barbara and I are , Spoiled for Zurepe " since the
stay in Madison and we have long hesitate with the answer to Can-
berra. But the change in position wouid mean an interruptiom
of work and this would be very unfortunate in the moment. So we
want to remain here. Nevertheless I hope to continue the contact
and to deve:ope a cooperation beaucause I am interested in problems
coneerning breeding of rhizobia.

All best wishes to Esther and you from Barbara and the
children! .

Sincerely yours

Oran