UNIVERSITY OF CAMBRIDGE

DEPARTMENT OF BIOCHEMISTRY TENNIS COURT ROAD
CAMBRIOGE 56288 CAMBRIDGE

30 Npvember 1957
Bear Dr Lederberg,

A year ago I wrote to you asking whether you thought
it might be possible to get an agreed usage for the term
protoplast but you were not able to reply. I understand
Dr. Kellenberger also wrote to you. I have now put together
after consultation with a number of people a note which
might or might not form the bads of a joint statement to be
sent to Nature. I wonder if you would be so good as to
look at 4t and let me have any comments ? It has been
sent to various other people who are working with peotoplasts
of varbus kinds.

Yours sincerely, Z IK (a _
Ga wi

_kefineth ilcQuillen
Dr Joshua Lederberg,
Department of Genetics,
University of Wisconsin,
MADISON, Wisconsin,
U. S. &,