1869.] 27 [Annual Keport. 



In the Entomological department Mr. P. S. Sprague has 

 spent much time upon the Carabidse, and we are indebted to 

 Dr. LeConte, Dr. Horn and others, for identifying many- 

 species sent to them. Rev. Mr. Trask, Mr. Stebbins and 

 Miss Sanborn have also assisted in various ways, both in this 

 and in other departments. Mr. Sanborn has rearranged the 

 Hemiptera of the Hams collection in the new cabinets, a few 

 additional trays of specimens have been placed on exhibition, 

 and about two thousand butterflies from Central America 

 spread, and thus made available for exchange. Much atten- 

 tion has been given to the preservation of the collections, 

 which, although not yet in the most desirable condition, are 

 greatly in advance of their state a year ago. Most of the 

 additions to this department have been made in small quanti- 

 ties by many persons. Some interesting East Indian Lepi- 

 doptera have been received in exchange from Mr. A. S. Bick- 

 more, and Dr. C. F. Waters has constantly added new objects 

 from our own vicinity. 



The lower Articulates remain in good condition. A num- 

 ber of species of Cancroids and Grapsoids, sent to Mr. S. I. 

 Smith of New Haven, for study, have been carefully labelled 

 and returned ; the Astaci have also passed through the hands 

 of Dr. Hagen of Cambridge. Thirty-six specimens of fifteen 

 species of Crustacea, from various parts of America, have 

 been received, in exchange, from the Museum of Yale Col- 

 lege. 



A portion of the new room devoted to the department of 

 Mollusks, has been placed in order and opened to the public. 

 In the month of January an arrangement was made with the 

 Curator to devote one half of the year to the collections 

 under his charge; in consequence, more than one thousand 

 tablets have already been arranged and placed on exhibition. 

 The Curator's entire attention has been given to the Pratt 

 collection, and its arrangement will be completed before he 

 proceeds to other work. From what he has seen of the Soci- 



