438 [December 



who has all along aided us in a manner that should call forth our 

 warmest feelings of admiration and thankfulness. 



The Library has not been neglected during the year just closed. 

 Many rare and valuable works have been added thereto,* for which 

 we are principally indebted to Dr. T. B. Wilson, Prof. J. 0. Westwood 

 of England, Prof. S. S. Hakleman of Columbia, Pa., and J. Carson 

 Brevoort of Brooklyn, N. Y. It may be considered a pretty complete 

 J.,ibrary of reference on the subject of Entomology, and hopes are en- 

 tertained that more of the members will embrace the opportunity thus 

 afforded. 



The Society's printed " Proceedings" speaks for itself. The pages 

 more fully show the amount of labor performed. As a periodical pub- 

 lication it will compare fovorably with the productions of kindred asso- 

 ciations ; and to those conducting this portion of the Society's labors, 

 there cannot be bestowed too much praise and encouragement. 



During the past year there have been presented for publication 42 

 Papers, as follows : — 

 9. By Aug. R. Grote^ to wit : 



" Descriptions of North American Lepidoptera." 4 Papers. 



''Description of a new species of North American Grortyna." 



" Description of a new species of North American Papilio." 



•' Descriptions of a new genus and species of North American Noc- 

 tuina." 



" List of a collection of Lepidoptera Heterocera, taken near Wil- 

 liamstown, Mass." 



" Notes on certain species of North American Lepidoptera." 

 7. By E. T. Cresson, to wit: 



•' On the North American species of several genera of Apidae." 



•' On the North American species of the genus Osmia." 



" Descriptions of North American Hymenoptera, in the collection 

 of the Entomological Society of Philadelphia." 



■• Descriptions of several new species of Apidae-." 



'• Descriptions of two new genera of North American Ichneumonidse." 

 • On the Hymenoptera of Cuba." 



•' Descriptions of two new species of Masaris." 



* There is now in the Library 1,08.3 volumes and pamphlets, being an in- 

 crease of 193 during the past year. 



