SMITHSONIAN MISCELLANEOUS COLLECTIONS 
VOLUME 134, NUMBER 10 
THE MEDICAL AND VETERINARY 
IMPORTANCE OF COCKROACHES 
(With SEvEN PLATES) 
By 
LOUIS M. ROTH anp EDWIN R. WILLIS 
Pioneering Research Division 
Quartermaster Research and Engineering Center 
Natick, Mass. 
(PusticatTion 4299) 
CITY OF WASHINGTON 
PUBLISHED BY THE SMITHSONIAN INSTITUTION 
DECEMBER 19, 1957 
