GENERAL INDEX. 



383 



Carbonic acid, action of, on plants, 



for extinguishing lires 



n 



298 



mines, 194 



Carolina, North, meteorite in, 275 



Carpet manufacture in America, 53 



Carpets, improvements in the manufac- 

 ture of, 52 

 " loom for weaving, 53 

 Carriages, steam, on common roads, 

 Carts and wagons, 100 

 Carysfort light-house, 



Casasecas, M ., 305 



Cast-iron pipes, 79 



Cast zinc in decoration, 89 



Casting, gun, improvements in, 48 



Cattle, Arabian, 3-21 



Cause of goitre and cretinism, 202 



" of mirage, 152 



" of phosphorescence in the ocean, 308 

 Causes of blisters, 332 



Cauterizing of poisonous bites, 331 



Caves, bone, of Pennsylvania, 276 



Central America, antiquities in, 363 



Chain links tor cables, 81 



" pipes for telegraphs under water, 48 

 Chairs, railway, improved, 41 



Chalybeate springs, arsenic in, 200 



Charcoal, peat, deodorizing powers of, 215 

 Charleston Artesian well, 251 



Chamere, M., 211 



Chase, Prof., 278 



Cheavers, S., 56 



Chemical discoveries, recent, 162 



Chemitype printing, 



Chester, novel suspension bridge at, 20 



Chicory coffee, 305 



Chimneys, smoky, prevention of, 

 Chinese' hemp, 

 Chloroform, 



and naphtha, 



" injected into the arteries, 331 

 " steam-engine, 

 Chrome of Asia Minor, 

 Chutes River, infusorial deposits on, 

 Cincinnati, grape-culture near, 



" lard and oil manufacture, 97 



Circulation and digestion of the lower 



animals, 

 City, newly discovered, in Central 



America, 



Clamps, coupling, new, 

 Classes of animals, 307 



Claudet, M., 140, 143 



Climate of Italy, 



" of Iceland, 

 Cloth, incombustible, 176 



" water-proof, 

 Coal, anthracite, in Mass., 



" in locomotives, 



" Cumberland, 267 



quality of, 268, 269 



" discovery of, in Egypt, 



*' Exchange, London, 



" formation in America, 271 



" formations on the Pacific, 266 



in Arkansas, 



in Rhode Island, 271 



Coals, analysis of, 



Coast of Mass., coral animals on, 311 



" of the U. S., progress of the sur- 

 vey of, 351 



Coast survey and the telegraph, 124 



Coffee, chicory, 305 



Colored glasses, use of, in fogs, 149 



" photographs, 140 



Coloring of green tea, 304 



" stones artificially, 211 



Colors of flowers, 297 



Combination of nitrogen, 221 



Combinations, crystalline, by heat, 213 



" heat of, 198 



Comet, second, of 1849, 343 



Comets, connection of, with the solar 



system, 343 



Common roads, steam-carriages on, 37 



Comparative cost of public buildings, 366 



effects of anaesthetic agents,165 



" structural features of the 



Appalachians and Alps, 225 



Compass, self-determining variation, 44 



Compounds, metallic, improvements in, 87 



Composition of honey, 175 



Compression, power of iron to resist, 81 



Conducting power of liquids, 111 



" " of flame, 112 



Connecticut copper mines, 252 



" discovery of fossil remains 



iu the valley of, 



" valley, river terraces of, 229 

 Connection of comets with the solar 



system, 343 

 " of the aurora borealis with 



electricity, 119 

 Constituents, inorganic, of the oat-plant, 180 

 Construction of Carysfort light-house, 

 Consumption, 333 

 Copper and brass, to zinc, 90 

 " black oxide of, 261" 

 " in the human blood, 203 

 " mines in Connecticut, 252 

 " " of Lake Superior, 261 

 " native, of 260 

 " ores of Lake Superior, vanadi- 

 um in, 262 

 " type, 59 

 Copying engravings, new mode of, 213 

 " electro-telegraph, 123 

 Coral animals on the coast of Mass., 311 

 " " structure of, 311 

 " islands, 239 

 Cordage machine, 



Corks, manufacture of, by machinery, 



Cost of public buildings, 366 

 Cotton, a fibre of, incapable of being 



dyed, 176 



Cotton-gin, 20^6 



Cotton-seed extractor, 60 



Cottus, fresh- water, of North America, 309 



Coupling-clamps, new, 43 



Coze, M., 331 

 Cranial capacity of different races, 



Crater, old, of Kilauea, 235 



Cream, method of increasing, 184 

 Cretinism, cause of, 

 Crinoids, fossil, of the U. S., 



Cram, W., 176 

 Crystalline combinations by heat, 

 Culture of tea in the U. S., 

 Culture of the grape near Cincinnati, 



Cumberland coal, 267 



Cure for hydrophobia, 302 



Curious electrical phenomenon, 117 



