404 



INDEX. 



Salt water, strength and analysis of, 65. 

 *^ang, Edward, on the relation between a 



machine and its model, 264. 

 Saponaceous vegetables, SSI. 

 Savings bank of Geneva 209. 

 Schoolcraft's, Mr., address on the North 



American Indians, 190. 

 Scientific premiums, 210. 

 Shells, Baron Ferussac's new work on, 



193. 



Siliceous glass, from the burning of hay, 



174. 



Silicon, process for 247. 

 Silver mines of Mexico and South Amer- 

 ica, notice of, 213. 

 Smelting of silver ores, 218. 

 Society, Geological, of France, 192. 

 Historical, of Indiana, 181. 



Transition rocks of the Cataraqui, 97. 

 Twining, A. C, on the growth of timber, 

 391. 



U. 





- Polytechnic, of Paris, 191. 



South America, extract from travels in, 



383. 

 Spathic iron, analysis of, 170. 

 Spots on the sun, 204, 

 Starch, 371. 

 Stereotype printing, 319. 



Strong, Prof., on the motions of a system 



of bodies, 40. 

 Stucco for walls, 206. 

 Sun, spots on the, 204. 

 Surveys, canal, in Mew York, 19. 

 Syphons, improved, 317. 



T. 



Temperance, Prof. Oliver's address on, 



190. 



Thermal spring in the bed of the Rhone, 

 201. 



Thomson, J., on describing curves for 

 arches, 73. 



Timber, A. C. Twining on the growth of, 

 391. 



Tobacco, Prof. Wright's lecture on, 190. 



Ultramarine, artificial, 373. 



V. 



Vegetables, bitterness of, 273. 



saponaceous, 381. 



Venus, rotation of, 204. 

 Vesuvius, 243. 



Vines, to prevent their bleeding, 205. 



W. 



Wadsworth, Daniel, Esq., on architec- 

 ture, 257. 



Walks and alleys, valuable material for, 

 206. 



Water spout on the lake of Geneva, 377. 



Wheeling, Va., notice of, 186. 



Wilkie, Rev. D., on expressions for sides 



of right angled triangles, 68. 

 Wines of Madeira, 240. 

 Withers, Dr., geological notices of Greene 



County, Alabama, 187. 



Woodruff, Judge S., on hybernation, &c. 

 363. 



Wool, cleansing of, 205. 

 Wright, Elizur, Esq., on the fluxional ra- 

 tio, 298. , 



Prof. E., on temperance, 190. 



X. 



Xavier, Francois, necrology of, 194 



Z. 



Zacatecas, mines of, 230. 



