BOARD OF TRUSTEES

CARL LAMANNA, R. E. BUCHANAN
SOCIETY OF AMERICAN BACTERIOLOGISTS

H. H. MCKINNEY
AMERICAN PHYTOPATHOLOGICAL SOCIETY

M. H. SOULE
AMERICAN ASSOCIATION OF
PATHOLOGISTS AND BACTERIOLOGISTS

D. H. WENRICH
AMERICAN SOCIETY OF ZOOLOGISTS

R. W. DAVIDSON
MYCOLOGICAL SOCIETY OF AMERICA

N. R. SMITH
AMERICAN INSTITUTE OF BIOLOGICAL SCIENCES

R. D. COGHILL, G. W. IRVING, JR.
NATIONAL RESEARCH COUNCIL

EXECUTIVE COMMITTEE

CARL LAMANNA, CHAIRMAN
R. E. BUCHANAN
M. H. SOULE

AMERICAN TYPE CULTURE COLLECTION
2029 M STREET. N. W. CURATOR
WASHINGTON 6,

FREEMAN A, WEISS
D. Cc.

ASSISTANT CURATOR
R. LLOYD PHILLIPS

ISABELLA S. BOULDIN, BACTERIOLOGIST
RUTH D. DAVIS, BACTERIOLOGIST

SECRETARY-MANAGER
KATHERINE ALVORD

March 26, 1952

Dr. Joshua Lederberg
Department of Genetics

The University of Wisconsin
Madison 6, Wisconsin

Dear Doctor Lederberg:

The silica-gel-dried cultures of BE, coli and Shigella that
you sent us in february were opened efter a month end both grew
promptly upon transferring the granules to broth, Thank you
very much for this courtesy and for the leaflet explaining your
procedure,

The mechanical features of this process eppear to be
admirable, We have wondered how the exceptionally neet end
stout seal is accomplished. The National Type Culture Collect-
ion of =ngland is now sending out dried cultures, produced by
the ordinery lyophile process, which are encased in a small
balsa wood block with e cardboard cover, sealed with plastic
tape, This is about the ultimate in preparing bacterial cultures
for transport by air mail.

Can you conveniently send us two more of the direction sheets?
I am asking the Washington Academy for a small grant to support ea
study of this method and the application must be in duplicate,

With thanks.

Sincerely yours,

J Freenan A, Weiss
Curator

PAW /ap