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MD., S. A.BALTIMORE, U.ADVERTISEMENT
Collections series contains, since theThe Smithsonian Miscellaneous
Contributions to Knowledge,suspension in 1916 of the Smithsonian
Institution the An-all the publications issued directly by the except
nual Report and occasional publications of a special nature. As the
name of the series implies, its scope is not limited, and the volumes
thus far issued relate to nearly every branch of science. Papers in
the fields of biology, geology, anthropology, and astrophysics have
predominated.
Leonard Carmichael,
Secretary, Smithsonian Institution.
(iii)SMITHSONIAN MISCELLANEOUS COLLECTIONS
VOLUME 141 (WHOLE VOLUME)
THE BIOTIC ASSOCIATIONS OF
COCKROACHES
(With Plates)37
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