UNIVERSITY OF CAMBRIDGE

MEDICAL RESEARCH COUNCIL SCHOOL OF BIOCHEMISTRY
UNIT FOR CHEMICAL MICROBIOLOGY TENNIS COURT ROAD
TELEPHONE: 56288 CAMBRIDGE

20 July 1957

Dear Dr Lederberg,

I am writing a eection on photoplasts for Stanier
& Gunsalus' book on Bacteria. If you have any material
published, in press or in preparation which you think
might be relevant, I should be very hapoy to hear of it.
The chapter has to be completed by the end of September.

Yours sincerely,
£ bbe
a tA

—_— henne th ~cQuillen