9G PROCEEDmas op the [August, 1885. 



Contribution to the Collection. 



Cubes of Sulphuret of Iron, partly converted into Oxide of Iron, 

 from Flat Eock, N. C. From Dr. L. A. Frampton. 



Letters of resignation were received from Drs. F. Peyre Por- 

 clier, S. L. Lockwood and F. L. Parker. 



AUGUST 13th, 1885. 



The President in the Chair. 



Books Received. 



Anales del Museo Nacional de Mexico, Tomo 3, Entr. G-7, 1885. 

 American Philosophical Society, Philadelphia : Proceedings. 

 Vol. XXII, No. 118. 



The following paper was read : 



Swainson's Warbler, Helinaia Swainsoni, Audubon. 



BY AKTHUK T. WAYNE. 



This bird was first discovered by the Kev. John Bachman, in 1832, on the 

 banks of the Edisto Kiver in South CaroHna. His experiences ^\ith it are quo- 

 ted by Audubon in his work on the " Birds of America." Dr. Bachman seems 

 to have taken at least five specimens, one of which is in the Charleston Muse- 

 um and another in the Smithsonian Institution at Washington, this last having 

 been given to Prof. Baird by Audubon himself. Since then only six additional 

 birds were taken, besides the five of Dr. Bachman, until the Spring of 1884, a 

 period of 52 years, at which time it was thought by naturalists to be cm the 

 verge of extinction. At the last date, however, believing that its apparent 

 scarcity was due to there not having been any resident collector here for manj 

 years during the Summer months, at the suggestion of Mr. Wm. Brewster of 

 Cambridge, Mass., who was here on a collecting tour, I went to work with 

 great earnestness to secure the coveted prize. 



After a search of some days in the country a few miles North of Charleston 



