410 



INDEX. 



E. 



Eames, T., address of, at the opening of 

 the Classical Hall at Brooklyn, 181. 



Eaton, Prof., on geological equivalents, 

 132. 



Geological Text-Book, 389. 



stratiographical geology, 199. 



Editor, on chloric ether, 405. 



reminiscences of Eli Whitney, Esq. 



by the, 255. 



Edwards, Pres., juvenile observations of, 

 on spiders, 109. 



Eggs, preparation of, for cabinets, 161 . 



Elasticity restored to feathers, 372. 



Electricity, decoraposition of water by, 

 368. 



production of phosphores- 

 cence and color by, 378. 



Electro-magnetic apparatus, 86, 



Encyclopedia Amei'icana, 187. 



Epicycloid, investigation of, 280. 



Faraday, Mr., on vaporization, 151 

 Faults in geology, 13. 

 Feathers, elasticity restored to, 372. 

 Felspar, potash obtained from, 157. 

 Fine arts. Prof. Gimbrede on, 386. 

 Flax, 27. 



Fluids, compression of, 3S1. 

 Formation, geological, 9. 

 Fowler, Dr., on the sapphire, &c. of Sus- 

 sex county, N J. 319. 

 Franklin Institution of New Haven, 185. 

 Fructification of mosses, 171. 

 Fulminating preparations, 288. 

 Fulminic acid and fulminates, 293. 



Gale, L. D., processes for potassium, 6 



Galvanic ignition in rock blasting. Dr. 

 Hare on, 139. 



Galvanism, transfer of colors through ani- 

 mal substances by, 316. 



Gases, liquid, conducting powers of, 374. 



Geography, physical, 127. 



Geological age of i-eptiles, 359. 



equivalents. Prof. Eaton on, 1132 



Geology, principles of, by Mr. Phillips, 1 



of part of Connecticut, 94. 



of the Highlands of N. Y., 97. 



of Orange Co. N.Y. and Sussex 



Co. N. J., 321. 



stratiographical, Prof. Eaton on, 



199. 

 Gimbrede, Prof., on fine arts, 386 

 Gold, Russian mines of, 372. 

 Griscom, Prof., address of, to the Newark 



Mechanics Association, ISO 

 Gunpowder, 93, 292. 

 Guthrie, S., on caustic potassa in making 



chlorate of potassa, 64 



Guthrie, S., on chloric ether, 64,405. 



on chlorate of potassa, 92. 



on fulminating preparations, 



ates, 293. 



284. 



on fulminic acid and fulmin- 



on gunpowder, 93, 292. 

 on molasses from potatoes, 93. 

 on oil of turpentine, 93, 291. 

 on sugar from potatoe starch, 



on the vaporization of mercu- 



ry in niti'ic ether, 90. 



Halo, notice of, by J. W. Tyler, 189. 



Hardness of lead, 167. 



Hare, Dr., on galvanic ignition in rock 

 blasting, 139. 



Harris, Mr., on lightning conductors in 

 ships, 347. 



Hayes, A. A., on cobalt and nickel, 195. 



Hazard, Mr., on the hyperbola, 314. 



Heat and vapor, Prof. Johnson on, 71, 304. 



Hemp, 27. 



Henry, Dr., on the disinfecting powers of 

 increased temperatures, 392. 



Hentz, Mr., on North American spiders, 

 99. 



Hibiscus roseus, 36. 



HoUey, M., address of, to the Wayne Co, 

 Education Society, 181. 



Horses, power of, 167. 



Horticulture in the West, 193. 



Hudson and Mohawk rail road, Mr, Blood- 

 good on, 141, 387. 



Hurricane of August, 1831, W. C. Red- 

 field on, 191. 



Hyperbola, Mr. Hazard on, 314. 



Illumination of light houses, 366, 

 Inflammable gas in water pipes, 386 

 Insects, killing of, 162. 

 Iodides, 368. 



Iodine, acidification of, by nitric acid, 376. 

 in mineral waters, 366. 



Irving, J. T., address of, to the alumni of 



Columbia College, 181. 

 Iron, prevention of, from rusting, 150. 



oxide of, containing ammonia, 155. 



Island, volcanic, in the Mediterranean, 



399. 

 Ives, Prof. E. , on chloric ether, 406. 

 Ives, Dr. N. B,, on chloric ether, 407. 



Jet d'eau under water, 379, 380, 

 Johnson. A. B., address of, to the New 



York state Lyceum, 181. 

 .TohnsotT, E. F... on the epicycloid, 280. 



