408 INDEX. 



Rain-water, impurity of, 185 



Ribancourfs memoir on peat, 250 



Rocks, descriptive arrangement of, 28 



Russia, population and religion of, 397 Rome, 401 



S 

 Sandstone, tracks of animals upon, 84 Salt springs, 1, 6 



Saccharum in sweet potato, 285 

 Schools in the state of New York, 401 

 Scrope, G. P. Esq. descriptive arrangement of rocks by, 28 

 Sideroscope, notice of, 177 Silex, hydrate of, 390 



Slides of the White and Green Mountains, 217 

 Smith, S. notice of salt springs of N. York by, 6 

 Society of encouragement of Paris, premiums of, 173 

 Stars, double, 76 do. twinkling of, 360 do. falling ones, 168 

 Steam engines, 185 Steel, blistered, 372 

 Sternbergite, a new mineral, 386 Sugar in Beet, 394 

 Sulphate of alumine, localities of 243 



iron, do. 243 



magnesia, do. 241 



Sulphur, properties of, 189 



Sulphuretted hydrogen in springs, 275 



Sulphuric acid, native, 233 



Synoptical table of American ferns and mosses, 287 



T 

 Tiarks, J. L. on the northern boundary of the Lake of the 



Woods, 41 

 Tin, purity of, 178 Tracks of animals in sandstone, 84 

 Trail, Dr. on the preservation of animals, 167 

 Tourmalines, analysis of, 389 



U 

 Ultra-marine, notice of, 392 



V 

 Virginia aerolite, 195 Vitality of matter, 54 

 Volcanos and earthquakes, hypothesis of, 12 

 Volta, Alexander, biography of, 67 

 Volumescope, a new chemical instrument, 275 



W 

 Water, compressibility of, 180 Water, evaporation of, 186 



in wells, temperature of, 190 



Webster's Dictionary, notice of, 399 



Wilcox, letters of, on the White Mountains, 217 



Woodbridge, Wm. C. on Italian engravings, 401 



Y 

 Yale College, Report of the faculty on a course of liberal educa- 

 tion, 297 Z 

 Zodiacal light, 62, 364 

 Zoology, preservation of specimens in, 167 



