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UNIVERSITY of PENNSYLVANIA /C> PI AL-

PHILADELPHIA 4

The-School-of Medicine —

Tue Exrprince Reeves JoHNson
Founpation ror MevicaL Paysics March 16, 1951

 

Dear Josh,

Thanks for the note regarding the last
sentence of the lst paragraph on p29 of my Ann Rev
Microbiol. article. I've been out a lot with colds
and the flu and am just now cleaning up some of
my ancient correspondence,

As it stands the sentence doesn't make
sense to me either. This sentence was a note to my-
self on a dictating machine which found its way into
the MS and did not relate to your work particularly.
In an additional paragraph outlining the relations
between sensitivities to various phages (B/1,5, for
example) and nutritional requirements (B/1, tr, for
example) the sentence would have fitted as a conclu-
ding statement, "Eventually we may look for moretic
genetic relations between factors determining sensi-
tivities to various phages and those determining
nutritional requirements." But the theme was
never developed and the sloppy sentence stayed in. —
To my sorrow.

stereoscopic

We're getting some beautiful/electron micro-

scope pictures of T2 adsorbing on B tail first.

It might be worth while to tkae some pictures of

your diploid K-12 coli, particularly since I have
heard that it is lysogenic. Would you send me a slant
of K-12 and a host for the phage?

Best regards,

Thomas F. Anderson