October 12, 1950.
Dear Vernon:
Under separate covers, I am sending a) whatever reprints I have left, and
b) two K-12 derivatives: 56-161 [Bei]; #1177 [TeL\By- Lac~ Jal~ Kyl- Mtl- Galt
Arat VV," 3°}, I am sure I don't kaow what you mean by "ornery"; these stocks
ard well tagged; cross well; and are probably the same or very close to those

used by Cavalli, Newcombe, etc.
Speacing of reprints, would you send me yours?

Sincerely,

Joshua Lederberg,
Associate Profassor of Cenetics