802 PROCEEDINGS OF THE ACADEMY OF [DeC, 



of 617 Muybridge plates illustrating animal motion. They will 

 fill six portfolios and go far toward the completion of the Academy's 

 collection of these interesting plates, of which previously there 

 were but 103 in the Library, 



Four hundred and ninety-eight volumes have been bound. 



A death-mask of Dr. Joseph Leidy, whose memory is held in 

 deserved esteem, has been presented by his nephew. Dr. Joseph 

 Leidy, Jr. 



The decrease in the number of volumes bound and the slight 

 falling off of receipts from those reported last year are consequent 

 on the absence of the Librarian from May until October, four 

 months' vacation having been kindly granted him by the Council 

 for the improvement of his health, an end which was measurably 

 secured by a prolonged stay in Italy. He has great pleasure in 

 acknowledging his obligation to his assistant, Mr. William J. Fox, 

 who during that period perfoi'med the routine work of the Library 

 and ako acted as Recording Secretary most acceptably. 



All of which is respectfully submitted, 



Edward J. Nolan, 



Librarian. 



REPORT OF THE CURATORS. 



The year just past has been one of prosperity. While the soci- 

 ety's income is small compared with that of many other institutions 

 of like character, the increase in its scientific collections has been 

 large, and the results obtained in original reseanjh have been the 

 most extensive in its history. 



The buildings and the collections in the care of the Curators 

 have been kept in excellent condition during the year, while many 

 improvements have been effected. 



Additional space has been provided for the Entomological depart- 

 ment by enclosing another section of the first floor of the old 

 Museum. The taxidermist's quarters in the new wing have been 

 partitioned off from the rest of the basement and heated. 



An enlarged system of steam pipes, covered with magnesia, has 

 been introduced in the old building. 



