131 



Proceedings of the American Philosophical Society. Septem- 

 ber to December, 1845. From the same. 



Johannes Roeper. De Organis Plantarum. 4to. Basilise, 1828. 

 From Prof. Asa Gray. 



Dana, James D. On the Drawing of Crystals. 8vo pamph. 

 New Haven. From the same. 



Oakes, William. Catalogue of Vermont Plants. 8vo pamph. 

 Ipswich, Mass. From the same. 



Croom, H. B. Catalogue of Plants in the vicinity of Newborn, 

 N. C. 8vo pamph. New York, 1837. From the same. 



Supplement to the Appendix to Capt. Parry's Voyage. 4to 

 pamph. London. From the same. 



Lichenes. Auctoribus Julio Meyer et Julio de Floter. 4to 

 pamph. From the same. 



Sprengel Antonio. Tentamen Supplementi ad Systematis Ve- 

 getabilium Linneani editionem decimam-sextam. 8vo pamph. 

 Gottingse, 1828. From the same. 



April 15, 1846. 

 The President in the Chair. 



Letters were read from B. L. C. Wailes, Esq., of Wash- 

 ington, Mississippi, and John T. Plummer, M. D., of Madi- 

 son, Indiana, severally acknowledging the receipt of notice 

 of their election as corresponding members ; and from Mr. 

 George Ditson, of Cuba, and M. Tuomey, Esq., accom- 

 panying donations. 



Mr. Charles Stodder gave a verbal description of some 

 appearances in the strata of di'i/t, in a ridge, on the north 

 flank of the hill at South Boston, called Mount Washington, 

 unlike any which had been described, so far as he knew, 

 and which, he thought, could not be accounted for by any 

 of the theories proposed to explain the phenomena of drift. 



Mr. Stodder stated that the general form of the ridge is narrow 



