20 Agricultural Experiment Station, Ithaca, N. T. 



life-history of nearly all of our spe^es is being traced. The 

 results of this important investigation will be available for the 

 use of this station, and the only expense to the station connected 

 with it is the use of a desk in the insectary and of breeding 

 cages. 



Original investigations upon the habits of Bruchus obtectus 

 and Bruchus quadrimaculatus, the two most common weevils 

 infesting peas, beans and other seeds have been 'made during the 

 year. The egg-laying habits of the former species were first 

 observed here. 



About twenty other species of insects injurious to agriculture 

 have been studied, and much time has been devoted to answering 

 inquiries regarding entomological matters. 



Although I have kept a careful oversight of the work of this 

 division of the station, Mr. Slingerland has been able to relieve 

 me by attending to the carrying out of the experiments and to 

 the preparation of matter for publication. And I have been 

 able to devote myself more fully than at any other time since 

 the establishment of the station to the duties of my chair in the 

 department of instruction of the university. I sincerely hope 

 that we shall be able to continue to employ an experienced and 

 responsible assistant who can devote his entire time to the work 

 of the station. The conditions which obliged us at first to depend 

 on inexperienced assistants are not likely to occur again. 



Very respectfully submitted. 



JOHN HENRY COMSTOCK. 



