SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOLUME 131, NUMBER 11 



(End of Volume) 



THE VENTRAL INTERSEGMENTAL 



THORACIC MUSCLES OF 



COCKROACHES 



By 

 L. E. CHADWICK 



Department of Entomology 

 University of Illinois 



■4< 



/ORBEpTi 



(Publication 4261) 



CITY OF WASHINGTON 



PUBLISHED BY THE SMITHSONIAN INSTITUTION 



JANUARY 15, 1957 



