GENERAL INDEX. 



419 



ERNI, MR., 197 



Eruption of Vesuvius, 279 



Euharmonic organ, 153 

 Europe, manufacture of beet-root sugar 



in, 



EVERETT, EDWARD, 119 

 Evergreens, transplanting, 320 

 EVRARD, M., 151 

 Exhibition of 1851, building for, 102 

 Existence of bromine in coal, 181 

 of iodine in water plants, ISO 

 of the Northwest Passage, 267 

 Exogenous wood in the lias formation, 315 

 Explosive compound, new, 235 

 Extinction of light in the atmosphere, 139 

 Extraction of silver from metallic min- 

 eral, processes for, 175 

 Exudation of ice from the stems of veg- 

 etables, 157 

 Eye, direct exploration of the interior 



of, 352 

 piece, solid, new, 145 

 production of luminous impres- 

 sions on, 147 

 Faces of men and animals, resemblance 



between, 355 

 Fahrenheit and Centigrade thermome- 

 ters, comparison of, 153 

 FAIRBAIRN, H., 93 

 Fall of dust, 342 

 " of the Missouri River, rate of, 257 

 Falls of Niagara, 253 

 FARADAY, PROF., 133, 221, 227 

 Faye's comet, 367 

 FA YE, M., 367, 376 

 FAYRER, CAPT., 48 

 Features, general, of the Pacific, oriein 



of, 254 

 Feet of birds, recent impressions of, 314 

 Fermentation, phenomena and cause of, 197 

 Fibrine of muscular fibre, 194 

 FIGUIER, M., 272 

 Figure and density of the earth, appli- 

 cation of the electro-chronograph to 

 the determination of, 123 

 Files, resharpening, by a chemical pro- 

 cess, 93 

 Filtering sea-water, apparatus for, 63 

 Filters, improved, 62 

 FINDLEY, A. G., 160 

 Fire-arms, improvements in, 41 

 Fisheries. California pearl, 331 

 Fishes, domestication of, 336 

 frozen, resuscitation of, 336 

 " nest-building, 335 

 FITZGERALD, CAPT., 309 

 FLANDIN, M., 177 

 Flax, improvements in the preparation 



of, 76 



Flesh, effect of nitric acid on, 195 



FLETCHER, MR., 377 



Flora, marine, of the Atlantic States, 322 



" of the date country and Sahara, 322 

 Fluorine, presence of, in blood, milk, 



and sea-water, 188 

 Foraminiferee of the coast of the United 



States, 328 

 Fodder, dry and moistened, difference 



between, 1 93 



Folding papers and books, machine for, 33 



ts 



cc 



Food, connection between the consump- 

 tion of, and the increase of weight of 

 animals, 192 



Footprints in the carboniferous rocks of 

 Pennsylvania, 314 



Forces, magnetic, variation of, 132 



FORCHHAMMER, M., 182 



Forging and welding iron, improvements 



in, 89 



Form of railway axles, 17 



" in the diamond under the influ- 

 ence of the voltaic arc, 172 

 Formation, coal, absence of, in Califor- 

 nia and Oregon, 306 

 coal, palms in, 315 

 lias, exogenous wood in, 315 

 Silurian, in Bohemia. 259 

 Formations, geological, connection be- 

 tween those of America and Eu- 

 rope, 255 

 Formic acid, occurrence of, in stinging 



nettles, 200 



Forms, irregular, machine for rolling, 33 

 " permanent, relation of, to em- 

 bryonic development, 339 

 Formula for an ink which resists the 



action of acids, 233 



FORSHEY, C. G., 256 



Fossil elephas, northern, 312 



" remains of the birds of New Zea- 

 land, 313 

 " turtles, 311 

 Fossils in France, 312 

 " new, in the possession of Dr. 



Mantell, 312 



FOUCAULT, M., 138 



France, beet-susar in, 80 



fossils in, 312 



Freezing of the albumen of eggs, 220 



point of water, effect of pres- 

 sure in lowering, 156 

 of water, conditions of, 221 

 Fresh-water condenser, 9 

 " mollusks, American, 329 

 " plants, iodine in, ISO 

 Frost, apparatus for preventing the 



bursting of water-pipes from, 59 



Fuel, fossil, 305 



Functions of the pancreas, 354 



Fusion and volatilization of bodies, 170 

 Galvanic light, application of, 112 



Galvanized wire and hemp ropes, ex- 

 periments with, 39 

 Gamboge tree, 320 

 GANNAL. M., 327 

 GAROT, M., 214 

 Gas, coal, purification of, 85 

 cooking by, 54 

 from water, 83, 233 

 new material for the manufacture of, 84 

 " retorts, carbon from, as the nega- 

 tive plate of the battery, 1 1 1 

 " stove, 53 

 Gases, dry, influence of sunlight on the 



action of, on organic colors, 215 

 escaping from blast furnaces, 



use of, 87 



" simple process for demonstrat- 

 ing the liquefaction of, 232 

 Gaseous transformation of water 241 



