406 INDEX. 



Earthquakes and Volcanos, hypothesis concerning, 12 

 Eaton, Prof, on native gases, acids and salts, 233 

 Eaton, T. D. obituary of, 404 

 Education, liberal, reports upon, 297 

 Electricity, effect of on odors, 394 

 Errors in Dr. Robinson's catalogue, 197 

 Eudiometer, an improved one, 265 

 Eudiometry, use of nitric oxide gas in, 260 

 Evaporation of water on hot surfaces, 180 



by bladders, 392 



Europeans, former inhabitants of West Greenland, 166 



F 

 Falling Stars, 168 

 Ferns and mosses, synopsis of, 287 

 Fluxions, note to Wright's theory of, 196 

 Forgery, prevention of, 398 

 France, population of, 397 

 Fruit, preservation of, 381 



G 

 Geography, instruction in, 170 

 Geology of N. Scotia, 132, 201 

 Glaucolite, a new mineral, 387 

 Goethe, notice of, 171 

 Granite and marble, durability of, 168 

 Greenland, West, former inhabitants of, 166 



H 

 Flail, cause of, in warm weather, 361 

 Haios, notice of, 364 

 Hare, Prof new chemical instruments by, 260 



on the Sugar in Sweet Potato, 285 



Heavens, blue color of, 360 



Helvetic Society of Natural Sciences, 176 



Horticultural Society of Paris, 378 Hydrate of silex, 390 



Hjdrosilicite, a new mineral, 388 



I 

 Ice water, on the drinking of, 194 Incompatible salts, 185 

 Iodine, used as a dye, 394 loduret of lead, 188 

 Iron, incruor, 169 Isopyre, a new mineral, 388 



J 

 Jackson, C. T. and F. Alger, on the geology of N. Scotia, 132, 201 



K 

 Knox, Geo. Hon. obituary of, 189 



L 

 Lake of the Woods, northwestern point of, 41 

 Leather sheathing for ships, 365 

 Liberal Education, reports upon, 297 



