PROCEEDINGS 



OF THE 



ACADEMY OF NATURAL SCIENCES 



OF PHILADELPHIA. 



Vol. I. MARCH AND APRIL, 1843. Nos. 24, 25. 



STATED MEETING, March 7, 1843. 







Professor Rogers in the Chair. 



, DONATIONS TO MUSEUM. 



A specimen of Posidonomia minuta, from the New Red 

 Sandstone of Prince Edward county, Virginia. Pre- 

 sented by Prof. Wm. B. Rogers, of Virginia. 



A mounted specimen of Sciurus , from Western 



Africa. From Mr. Cassin. 



A Collection of Parasitic Worms contained in 76 phials, 

 from Germany. Presented by Mr. William G. Burke, 

 through Mr. Cassin. 



A Copper Apparatus of large size, intended for disinfect- 

 ing zoological specimens by means of heat. Presented 

 by a Club of Members. 



35 



