May 24, 1948.

2850 Claflin AV@e,
Map York 63, N.Y.

Dear sir, Zinder,

The position to which Dr, Ryan hus referred is still open, but it
will be possible to consider your application only if it is completed
very soon. "molosed is a standard application form. Please f111 it cut
and return «ith the following additionsl items.

1. The Blue sheet: to the Graduate Office with a certified transcript
of your record.

2. ihe white sheet, with a photograph, an additdonul copy of your trans- .
cript (need net be an officinl ona) and a Columbia College catalog showing <
your course marked out, tc ayseif. Item 20. necd merely be the substance of
& letter desoribing the kind of work you consider yourself preparing for if
you were to attend her.

3 References: please have thei addressed to me. At least one of the res-
pondents should be well acjuainged with your laboratory work oad be prepared
to comment on it,

The department would hot now be interested to consider applicants iho
contemplated terminating their studies here before their completion (e.g. to
accept 2 place in Medical School). I mean that I would consider that you
were under a certain moral obli¢.tion to tell us now your attitude on this
question. .

The opening is for a }-time research assistantship. You could pursue a
full program leading to the «,,. or Ph.D., and concurrently pursue a research
problem in your major field. Until you have had an opportunity to develop
a snecial interest, the subject would necessarily be nore or less assigned.
Dr. tyan can tell you something of our present interests. The job pays roughly
‘$100 a month and remission of non-resident feqs, and can be gppointed either
for the academic or calendar year, Please indicate whether, if appointed, you
would prefer to begin during the sumer or fall.

With best regards, Sineerely yours,

Joshua Lederberg
assistant Professor of Genetics,