1850.] 



127 



Color. 5 Entitely black, except a spot under the eye and the exposed por- 

 tion of the secondaries, which are white. The white spot under the eye is larger 

 in the species now described. 



Hab. Atlantic coast of North America. 



Obs. The two species here alluded to are easily distinguished from each other 

 when examined toi^ether, and both may possibly be found in America and Europe. 

 The pointed extension of the velvety plumage upon the upper mandible is the 

 most ready character by which the species now described may be known. It ap- 

 pears to be the bird figured by both Wilson and Audubon as the Anas fusca 

 Linn. 



Specimens of both species are in the collection of this Society; the specimen 

 which led to their examination was shot at Egg Harbor. N. J., and presented re- 

 cently by our fellow member, E. J. Lewis, M. D. 



The annual Report of the Treasurer was read and referred to the 

 Auditors. 



The Report of the Librarian was read, as follows : 



REPORT 



OFTHELIBRARIAN 



For the year 18.00. 



The additions to the Library, of all descriptions, during the present year amount 



to 2965, this number being more than double that of 1849, and far exceeding the 



ratio of any previous year since 1834. The subjoined table has been prepared in 



the ordinary form, presenting the number of volumes, pamphlets, and works in 



parts or numbers, in each subject. 



Of the whole number 2965, there have been contributed by authors 74; by edi- 

 tors 18 ; by members, correspondents, and others 109 ; by societies and corpora- 

 tions 113 ; by Dr. Wilson 2493; by Mr. Edward Wilson, of Wales, 153; by the 

 TJ. S. Treasury Department 5 (charts.) 



The extensive contributions of Dr. Wilson to the Library, including those of the 

 present and previous years, are now the property of the Society, on the sole condi- 

 tion that they are not to be loaned from the Hall. The propriety of this restric- 

 tion is unhesitatingly acknowledged by all connected with the institution. It is 



