May, 1842.] 175 



Atrypa, Fucoides (5 specimens). 



Atrypa testudinaria. Diluvial grooves. 



Shell resembling Gryphsea. Star Coral. 



Pterinia carinata (2 specimens) Bilobite fucoid. 



Cornularia quadrisulcata. Coal impressions (9 specimens). 



Strophomena . 



Trilobites (not named, 6 specimens.) 



A white eyeless crayfish, (Astacus Bartoni?) anda small eye- 

 less fish, (presumed to belong to a sub-genus of Silurus,) 

 both from the Mammoth Cave, Kentucky, about 2J miles 

 from the entrance. Presented by W. T. Craige, M. D. 



WRITTEN COMMUNICATIONS. 



The Chairman read a letter from Dr. A. Clapp, dated New 

 Albany, Ind., May 15, 1842, making inquiry respecting his 

 communication read before the Academy in March last, and 

 also requesting a printed copy of a late paper by Mr. Conrad 

 on the Silurian and Devonian Systems,no\v in course of pub- 

 lication in the Journal of the Academy. 



NEW BUSINESS. 



Mr. Vaux presented a report of the returns of a subscrip- 

 tion by the following named members, for the purpose of 

 erecting, painting and glazing book cases in the Hall, viz. 

 R. M. Patterson, M. D., Thos. Nuttall, Samuel Ashmead, Geo. 

 W. Carpenter, S. G. Morton, M. D., Wm. S. Vaux, E. Dra- 

 per, William Hembel, C. W. Pennock, M. D., A. L. Elwyn, 

 R. Pearsall, S. S. Haldemon, Richard Wistar, and J. Price 

 Wetherill. The subscription amounted to $325, of which a 

 small balance remained unexpended, which it was proposed 

 to appropriate towards the erection of cases for containing 

 Birds. 



