255 



hibited a specimen of a carbonized stem in the Antliracite coal, 

 witli a distinct branch forming an angle of about 50°. 



He finally offered his opinion that a careful investigation of 

 tropical plants, in their native forests, would show analogies ma- 

 terially changing the present received ideas of fossil vegetation. 



Dr. Cabot exhibited fossils from the neighborhood of 

 Moosehead Lake ; Terebratute, Spirifers, and Crinoidea, 

 Prof. Rogers pronounced them analogous to those of the 

 Hamilton and Chemung groups of the New York series. 



ADDITIONS TO THE LIBRARY. 



James Hall. Crinoidea of the inferior strata of the New York 

 System. Part I. 4to. pamph. Albany, 1847. From the Au- 

 thor. 



S. S. Haldeman. Materials towards a History of the Coleop- 

 tera Longicornia of the United States. 4to. pamph. Philadel- 

 phia, 1847. Fro?n the Author. 



Proceedings of the Academy of Natural Sciences of Philadel- 

 phia. Vol, III. No. 9. ]\Iay and June, 1847. From the 

 Academy. 



R. W. Gibbes. Memoirs of the Fossil genus Basilosaurus ; 

 with notice of specimens from the Eocene Green Sand of South 

 Carolina. 4to. pamph. Philadelphia, 1847. From the Author. 



Magazine of Horticulture. No. 154. October, 1847. From 

 C. M. Hovey, Editor. 



Naoemher 3, 1847. 

 J. C. Warren, M. D. President, in the Chair. 



Dr. C. T. Jackson exhibited several Vertebrae, dug up 

 in a clay stratum, near the bed of a small stream in Ma- 

 chias, Me., and presented by Mr. Temple, of that place. 

 They were found at the depth of about eight feet. Dr. J. 

 considered them to be those of a Cetacean. They were 

 committed to Count Pourtales. 



