September 4, 1946.

Dr. ReL+ Rakieten,
Dept. Bacteriology,
long Island College of “edicine,
New York, N.Y.
Dear Dr, Rakieten:

ve have been working here for some time now on some problems in
bacterial inheritance, and are now about to focus our attention on the
Salmonella group. For such investigations in Escherichia coli, specific
phages proved to be very useful tools. However, we are very badly in need
of advice concerning bacterial viruses active on Salmonella organisms.
Noticing your name in connection with several publications on Salmonella
viruses, we hoped that you might find it possible to discuss some of
our problems.

I shell be in New York cbout two weeks from now; could you mention
when you might be reached sround that time? Or if that proves inconvenient,
can you suggest when and where else an ajpointment could be arranged?

Very sincerely yours,

Joshua Lederberg.