Index, 447 



Paris, (Dr. John Ayston) on sandstone, 23^k 



Pfissage, northwest, 101. 



Peat of Dutchess county, 139. 



Pent, (Mr Pelatiah) 85. 



Perkins, (Dr. Benjamin) 37. 



Petroleum, 49. 



Phalcena devastator, 154. 



Picture of Independence, 200. 



Pierce, (James, Esq.) on magnesia, 54, 142— on Staten-Island, 143. 



Pten<« of Cherokee country, 245- 



Plumbago, 239. 



Pole, north, attempts to discover the, 101. 



Pomeroy, (T.) his certificate, 87. 



Porcelain and porcelain clays, 57. 



Porter, (Dr. J.) on vegetation at Plaiufield, 264* 



Potato, Prof. Ives on, 297. 



Powders, fulminating, 168. 



Prame* and barrens of the west, 116, 331. 



Prehnite, 50, 135. 



Pyrites, magnetical, 49. 



Pyroxene, red, 244. 



Q. 



(Quarts, 63, 237, 238, 241, 340, 345. 



R. 



Ray (solar) connexion with magnetism, 90. 



Rafinesque (C. S., Esq.) on vegetation, 77 — on mustela vulpina, 83 — 

 on copper-head, 84 — on sponges, 149 — on Xanthium maculatum, 151 — 

 Exoglossum, 155 — on Diplocoea barbata, 352 — on discoveries in the 

 West, 311— on genus Floerkea, 373 — on Cylactis, &c,, 377 — ou Myo- 

 surus shortii, 379. — atmospheric dust, 397. 



Rain, red, 309. 



Refraction, (polar) effects on magnetism, 90. 



Respiration of oxygen gas, 95. 



Review of Cleaveland's Mineralogy, 35. 



Reynolds (Dr. W. G.) on meteors, 266. 



Ridge, (Blue) its geology, 217. 



River, (Wliite) in Java, 59 — In a cave, 320. 



Rock paint, 67. 



Rocks, transition, of East Tennessee, 61. — Of Indiana, 131 —Secondary, 

 213. 



Rottbollia, 355. 



S. 



Sandstone, old red, 212 — of the Capitol, Washington, 215— of Comwalk 

 England, 234. 



Salt, its effects ou vegetation, 389 — 391 — on anlmads, 394. 



Salts of Harrodsburg, 403. 



Say (Mr. Thomas) on Herpetology, 256 — on zoophytes, &c., 381. 



Schaeffer, (Rev. F. C.) on peat, 139— locaHties, 236. 



Sea-water, (distilled) 172. 



Seybert, (Dr. Adam) 37. 



Sienite, 106. 



Sheldon (Wm.) on tanning, &c., 312. 



Silver, (fulminating) accidents from, 169. 



Sines arid Cosines, formulae for, 424. 



Slate, argillaceous, 62, 67, 70—342. 



Smith (Professor E. D.) on earthquakes, fee, 9%- 



