INDEX, 



411 



Johnson, W. R., on heat and vapor, 71 



304. 



on the rotascope, 265. 



Jones, Dr., on the agency of galvanism in 



transferring colors, 316. 

 Joslin, Prof, on electro-magnetic appara^ 



tus, 86. 

 Journal of a naturalist, 390. 

 of the Philadelphia College of 



Pharmacy, 173. 



K. 



Kent, Chancellor, address of, to the Phi 

 Beta Kappa society of Yale Coll., 391 



L. 



Lamp glasses, cracking of, 165. 

 Latitude determined at sea, 187. 

 Laterrade, J. F., on the existence of the 



unicorn, 123. 

 Lead, alloy of, with bismuth and tin, 371 

 and tin, combustion of an alloy of, 



375. 



— hardness of, 167. 



pots, manufacture of, 196. 



Light houses, illumination of, 366. 

 Lightning conductors for ships, 347. 

 Lindley's Botany, Am. edition of, S89. 

 Lime, oxalate of, in plants, 372. 



Malic acid, 156. 

 Manganese in blood, 870. 



■ ores of, Prof. Turner on, 36 



Mantell, Mr., on the geological age of 



reptiles, 359. 

 Materia Medica, improved articles of, 184. 

 Mather, Lieut., geological notices by, 94. 

 Mease, Dr., on vegetable materials for 



cordage, 27. 

 Memoir of Eli Whitney, Esq. by Prof. 



Olmsted, 201. 

 Mercury, vaporization of, in nitric ether, 



90. 

 Metre and English yard compared, 382. 

 Mineral waters containing iodine and bro 



mine, 366. 

 Mineralogy of Orange county, N. Y. and 



Sussex county, N. J., 321. 

 Mineralogy, treatise on, by C. U Shep- 



ard, 389. 

 Mines of gold and silver in Russia, 372. 

 Mohawk and Hudson Rail road, 141, 385 

 Molasses from the potatoe, 93. 

 Morphine, sulphate of, Dr. Tully on, 49. 

 Mosses, fructification of, 171. 

 Musa textilis, 29- 



N. 

 Names, scientific, of ceri,;;- "i. 



Naturalist, journal of a, 390. 



Needle, magnetic, dip of, at St. Peters 



burgh, 382. 

 Nickel of Chatham mine, 195. 

 Nitric acid, action of, ob iodine, 376. 

 Nomenclature, chemical, Prof Whe- 



well's, 369. 



o. 



Olmsted, Prof., Memoir of Eli Whitney, 



Esq. by, 201. 

 Optical experiments, 166. 

 Orange county, N. Y., mineralogy and 



geology of, 321. 

 Organic fossils, 10. 

 Ornithological terms improved, 162, 

 Oxalate of lime in plants, 372. 



Pennsylvania coal formation, Mr. Pome- 

 roy on, 342. 



Pennsylvania, scenery of, 197. 



Phenomenon, singular, 198. 



Philadelphia college of pharmacy, jour- 

 nal of, 173.. 



Philadelphia, population of, 194. 



Phillip's geology, 1. 



Philosopical society, Yorkshire, 168. 



Phormium tenas, 37. 



Phosphorescence by electricity, 378. 



Plants, oxalate of lime in, 372. 

 scientific names for, 384. 



Pomeroy, S. W., on the coal formation of 



Pennsylvania, 342, 

 Population of PhiladeHphia, 194. 

 Position of rocks, 12. 

 Potash, original decomposition of, 367. 

 from felspar, 157. 



Potassium, processes for, 60. 

 Potatoes, planting of, 159. 



molasses from, 93. 



starch, sugar from, 284. 



Power of horses, 167. 

 Preservation of blood, 370. 



of trees from hares. 



159. 



Prussic acid, antidote to, 157. 



R. 



Rail road, Hudson and Mohawk, 141, 385. 

 Rainbows, acoustic, 381. 



— primary and secondary, brillian 



cy of, 379. 

 Redfield, W. C, on the collapsing and 



explosion of steam boilers, 190. 

 Redfield, W. C, on hurricane of August, 



1S31, 191. 

 Refraction, double. Dr. Brewster on, 296, 

 Eegne animal, Cuvier'.'?, American trans- 



