CONTENTS. V 



Page 

 II. Domestic. 



1. On the use of Soapstone to diminish the friction of ma- 



chinery, in a letter to the Editor, - - 192 



2. On Forest Trees, Orchard Trees, &c. - - 193 



3. Localities of Minerals in Vermont, <- - 195 



4. Phosphate of Manganese in Connecticut, new Locality of 



r l abular Spar, - - - - 196 



5. New Edition of Cleaveland's Mineralogy, - 198 



6. 7, 8, 9. Cabinet of Minerals for ^ale—The late Dr. Rob- 



inson's Collection of Minerals — Exchange of Mine- 

 rals—Coat of Mail, - - - 199 

 10, 11, 12. Kellyvale Serpentine — Character of the people 



of Ohio — Mule Silver. ... 200 



NUMBER II. 



Art. I. Remarks on the Gold Mines of North Carolina ; by 

 Charles E. Rothe, Miner and Mineralogist from 

 Saxony, ----- 201 



# II. On Mystery; by Mark Hopkins, A. M. - - 217 



III. Some data for the Natural History of Orange County, 



N. Y. ; furnished by Jer. Van Rensselaer, M. D. 224 



IV. On a Larva, liberated ow Ctopu ; by Jer. Van Rensse- 



laer, M. D. - - - - 229 



V. Notice and Analysis of Prof. Daubeny's Description 

 of active and extinct Volcanos, with remarks on 

 their origin, their chemical phenomena, and the 

 character of their products, &c. - - 235 



VI. Review of the Principia of Newton, continued, 311 



VII. Dr. Hare on the causes of the inadequate protection 

 afforded by Lightning Rods, in some cases, and the 

 means of insuring their perfect competency, &c. 322 



VIII. G. W. Carpenter on the manufacture and use of Pipe- 

 rine, with observations and experiments on the 

 Piper Nigrum and its preparations, - - 326 



IX. Prof. E. Mitchell, on the character and origin of the 



Low Country of North Carolina. - - 336 



X. On the supposed transportation of Rocks; by J. E. De 

 Kay; communicated to the New York Lyceum of 

 Natural History, - 348 



XI. Reply to Mr. A. B. Quinby's Question, at page 74, of 



this volume ; by E. W. Blake. - - 350 



