SMITHSONIAN

MISCELLANEOUS COLLECTIONS

VOL. 141

"EVERY MAN IS A VALUABLE MEMBER OF SOCIETY WHO, BY HIS OBSERVATIONS, RESEARCHES,
AND EXPERIMENTS, PROCURES KNOWLEDGE FOR MEN"—JAMES SMITHSON

(Publication 4470)

CITY OF WASHINGTON
PUBLISHED BY THE SMITHSONIAN INSTITUTION
1961

PORT CITY PRESS, INC.
BALTIMORE, MD., U. S. A.

ADVERTISEMENT

The Smithsonian Miscellaneous Collections series contains, since thesuspension in 1916 of the Smithsonian Contributions to Knowledge,all the publications issued directly by the Institution except the AnnualReport and occasional publications of a special nature. As thename of the series implies, its scope is not limited, and the volumesthus far issued relate to nearly every branch of science. Papers inthe fields of biology, geology, anthropology, and astrophysics havepredominated.

Leonard Carmichael,         
Secretary, Smithsonian Institution.

SMITHSONIAN MISCELLANEOUS COLLECTIONS

VOLUME 141 (WHOLE VOLUME)

THE BIOTIC ASSOCIATIONS OF
COCKROACHES

(With 37 Plates)

By

LOUIS M. ROTH

AND

EDWIN R. WILLIS

Pioneering Research Division, United States Army
Quartermaster Research and Engineering Center
Natick, Mass.

(Publication 4422)

CITY OF WASHINGTON
PUBLISHED BY THE SMITHSONIAN INSTITUTION
DECEMBER 2, 1960

[Pg a]

PL. 1
Blaberus craniifer, c. X 2. 1. (Photograph by Jack Salmon, Philadelphia Quartermaster Depot.).

[Pg i]

SMITHSONIAN MISCELLANEOUS COLLECTIONS

VOLUME 141 (WHOLE VOLUME)

THE BIOTIC ASSOCIATIONS OF
COCKROACHES

(...