November 12, 1947.

Dr. Mary Jane Ward,
Lilly Research Labs.,
pit Lilly & Company,
Indianapolis 6, Ind.
Dear Dr. Ward,

I have transferred and hope to send you shortly under
separate cover the cultures:

Y-9, Y<10, Y=26 and 58-3214. The last requires

biotin and proline and is indistinguishable from 58-5255
which I mentioned earlier. Let me know whether I can be of
any further assistance.

Since rely,

Joshue Lederberg |
Asstt Professor of Genetics.