December 16, 1957
Dear Syd:
Thanks ever so much for the cultures. They look beautiful but they do take their time growing.
Could you send us S. itersonii? The other two cultures are much more than large enough for my requirements, so this one might still do, judging from the description.
Good luck on the genetics, and let me hear of any exciting news.
Yours sincerely,
Joshua Lederberg