SURVEY OF
BIOLOGICAL PROGRESS
VOLUME III
BENTLEY GLASS
Editor
Advisory Board
G. W. BEADLE
E. W. SINNOTT
HARRIET B. CREIGHTON
W. M. STANLEY
W. U. GARDNER
P A U
L
W E I S
S
E. NEWTON HARVEY
Β. H. W,LLIER
1957
ACADEMIC PRESS INC
PUBLISHERS
NEW YORK