MEMO FROM TO: TX
J. LEDERBERG Joe Lein RC
GENETICS DEPARTMENT RO

STANFORD UNIVERSITY

STANFORD, CALIFORNIA Rips

<2 3 959

 

Bear Joe--
Does Bristol have a product In this fleld--
1 mean rediocontrast agents? (Or maybe later
densi ty-fractionation solutes). #
By coindidence, the latest Ann NYAS Is on this
subject.
‘Thanks for the reprints.
Harry Rubin told me of his visit. He's an

lh
& > ffe er

(a tetralodo-benzay! or-phthaloyi penicillin

able fellow.

might not be altogether preposterous: take ad-
vantage of the low toxicity and rapid excretion
of the penicl ilins) |

_ Have any penicillins been made where R- is
an amino actd?

cc: AACE Teoftyen |