STEUCTURE AND LITERATURE. 37 



While there are a good many questions of syno- 

 nymy to settle, among which Mr. Walker's species 

 are not the least of the difficulties, yet a great deal 

 of preparatory work for the new Catalogue is already 

 accomplished. The student will find most of the 

 published information respecting the North-Ameri- 

 can Noctuidse, issued during the last twenty years 

 in America, in the pages of the following journals 

 and publications : — 



The Canadian Entomologist. 

 The North- American Entomologist. 

 The Proceedings of the Entomological Society of Phila- 

 delphia. 

 The Transactions of the American Entomological 



Society. 

 The Proceedings of the Boston Society of Natural 



History. 

 The Bulletin of the BnfFalo Society of Natural 



Sciences. 

 Reports of the Peabody Academy of Sciences, Salem, 



Mass. 

 The Proceedings of the Academy of Natural Sciences 



of Philadelphia. 

 The Transactions of the Kansas Academy of Science. 

 The Bulletin of the U. S. Geol. and Geographical 



Survey of the Territories. 

 Reports on the N. Y. State Cabinet of Natural 



History. 

 Check List of the North-American Bombi/cice and 



Nocticelitce. 

 Bulletin of the Brooklyn Entomological Society. 

 ' Psyche.' 

 ' Papilio.' 



