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CONTENTS. 



GEOLOGY, TOPOGRAPHY, AND MINERALOGY. 



Pag« 



Art. I. On the Geology, Mineralogy, Scenery, and Cu- 

 riosities of Parts of Virginia, Tennessee, and 

 of the Alabama and Mississippi Territories, 

 &c. with Miscellaneous Remarks, &c. In a 

 Letter to the Editor. By the Rev. Elias 

 Cornelius 317 



Art. II. On the Origin of Prairies. By Mr. R. W. Wells. 331 



Art. III. Sketch of the Mineralogy and Geology of the 

 Vicinity of Williams' College, Wilhamstown, 

 Mass. By Professor Dewey, of Williams' 

 College, in a letter to the Editor. . . . 337 



Art. IV. On the Tourmalines and other Minerals found 

 at Chesterfield and Goshen, Massachusetts, by 

 Col. George Gibbs 346 



Art. V. Observations on the Minerals connected with 

 the Gneiss range of Litchfield county, by Mr. 

 John P. Brace, of Litchfield, Conn. . • . 351 



BOTANY. 



Art. VI. An Account of two North American Species of 

 Rottbiillia, discovered on the Sea-coast in the 

 State of Georgia, by Dr. William Baldwin, of , 

 Philadelphia 366 



Art. VII. Floral Calendar kept at Deerfield, Massachu- 

 setts, with Miscellaneous Remarks, by Dr. 

 Stephen W. Williams, of Deerfield. ... 359 



Art. VIII. Description and Natural Classification of the 

 Genus Floerkea, by C. S. Rafinesque, Pro- 

 fessor of Botany and Natural History in the 

 Transylvania University, Lexington, Ken. . 373 

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