REPORT 



COTTON INSECTS, 



UNDER THE DIRECTION OF THE COMMISSIONER OF AGRICULT- 

 URE IN PURSUANCE OF AN ACT OF CONGRESS 

 APPROVED JUNE 19, 1878. 



J. HENRY COMSTOCK, 



ENTOMOLOGIST TO THE DEPARTMENT OP AGRICULTURE. 



WASHINGTON: 



GOVERNMENT PRINTING- OFFICE, 

 1879. 



