DIVISION OF SCIENCE SERVICE

BOTANY AND PLANT PATHOLOGY = Ne :
6 CANADA

DEPARTMENT OF AGRICULTURE

 

Drawer 940,
Fredericton, N. B.,
October 6, 1953.

Dr. Joshua Lederberg,
Department of Genetics,
University of Wisconsin,
College of Agriculture,
Madison 6, Wisconsin, U. S. A.

Dear Dr. Lederberg:

This will acknowledge with thanks, recei;t
of your parcel of September 26 enclosing certain
mutants of Escherichia coli.

© Please accept my thanks for this courtesy.
Yours very truly,

J. L. Howatt,
J. L. H./MR Associate Plant Pathologist.