SMITHSONIAN MISCELLANEOUS COLLECTIONS 

 VOLUME 107, NUMBER 2 



THE THORACIC MUSCLES OF THE 



COCKROACH PERIPLANETA 



AMERICANA (L.) 



(With Eight Plates) 



BY 

 C. S. CARBONELL 



Laboratoria de Entomologia, Direccion de Agronomia, 



Ministerio de Ganaderia y Agricultura de la 



Repiiblica Oriental del Uruguay 



(Publication 3890) 



CITY OF WASHINGTON 



PUBLISHED BY THE SMITHSONIAN INSTITUTION 



MAY 8, 1947 



