426 



INDEX. 



Circle, genetic, in organic nature, 375 

 CLAUK. 11. J , 401, 402 



Clock, Westminster, 110 



Cloth, glided, water-proof, 111 



Coal a::d coke, relative value for fuel 



in locomotives, 48 



Coal, bituminous, decomposition of 



by heat, 228 



Coal, de-bitumenization of, 321 



" vegetable structure in, 353 



Coal-sifter, novel, 112 



Coal-tar, antiseptic properties of, 269 



" *' its composition and appli- 

 cations, 225 

 Coals and furnaces, 45 

 Coffee, influence of, 288 

 Color, new theory of, 156 

 Colors, prod uetiouol in photography, 160 

 Comet, liiela's, 411 

 ' new periodical, 414 

 Comets, polarization of the light of, 149 

 Compass, variation of, 139 

 Copper, ammoniacal oxide, a solvent 



.for cellulose, 240 



Copper, hardness of, 214 



Cotton, " dead," 345 



" how distinguished in fabrics 



from silk, 247 



Craniology, new system of, 3S7 



Cretaceous system in the U. S-, 337 



Crops, adaptation of manures to, 265 

 Crystallography, explanation of 



some abstruse problems in, 143 



Crystallization and fermentation, 



relation between, 241 



Declination, magnetic, 142 



DKNNET'S improved bayonet, 77 



Derrick. Bishop's " boom," 26 



Diamond, theory of the formation of, 205 

 Diamonds, occurrence of in Georgia, 323 

 Di ipason, uniform musical. 1^5 



Docks, ^Napoleon, at Cherbourg, 31 



Dolomites, formation of, Hunt on 



the, 278 



Drawings copied by galvanism, 139 



Drift, occurrence of art remains in 



the, 342 



Dust, atmospheric, 267 



Dynamoscopy, 267 



Earth, internal temperature of, 171 



" thickness of the crust of, 174 



Earthquake map of the world, 359 



Eastern, the great, 21 



Eclipse, solar. 1858, 420 



Ejgs. electricity of, 129 



ELDERHORST, Dr. W., 329 



Electric apparatus of the skate, 128 



conducting power of the 



metals, 120 



Electric conductivity, effects of pres- 

 sure on. 117 

 Electric light, new, 116 

 Electrical discharges, 121 

 " chemical effects 



of, 118 



Electricity, animal, new observa- 

 tions on, 129 



Des- 



11:5 

 131 



130 

 138 

 13S 

 196 

 280 

 321 

 80 





applications of to sur- 

 gery, 



130 



PAGE 



Electricity, atmospheric, curious ac- 

 tion of, 117 

 atmospheric excitation of, 115 

 " discharge of through 



gas-pipes, 119 



" Faraday's recent re- 



searches in, 10, 125 



probable nature of, 

 " therapeutic uses of, 



Electro-medical apparatus, 



pretz's, 



Electro-zinc deposits on copper, 

 Electrolysis of sulphuric acid, 

 Elements, nature of, 



'" numerical relations of, 

 EMMONS, DR. E., 

 Enamel for iron, 

 Engraving, on wood, application of 



photography to, 1H3 



photographic, 166, 167 



without an engraver, 164 

 Eye-ball, form of in diflerent ani- 

 mals, 150 



FARADAY, on phosphore-cence and 



fluorescence, 145 



" recent experiments 



in electricity, 122, 128 

 Fats, saponification of by chloride 



of zinc, 230 



FAWKES'S steam-plough, 86 



Fermentation and crystallization, re- 

 lation between, 241 

 Fibre, nerve and muscular, polarized 



condition of, 129 



Files, machinery for cutting, 109 



Filters, water, use of carbide of iron 



for, 255 



Fire-grates, construction of, 47 



Fire-shells, 195 



Fluorescence and phosphorescence, 145 

 " intermitting, 149 



Fog, to render objects visible in, 156 

 Foods, influence of different, 268 



Forms, natural, regularity of, 373 



Fossils, from the lead crevices of the 



West, 326 



" sub-silurian, 325 



FOSTER, J. W., on the extinct pec- 

 cary of the West, 326 

 FRANKLIN, SIR JOHN, information 



concerning, 10 



Frozen wells, 316 



Fruit essences, artificial preparation, 271 



Fruits, constitution of, 241 



" method of increasing the size 



of; 371 



" preserving, 97 



Fulgarites, formation, 116 



Furnace, Carmont and Cobett's im- 

 proved, 222 

 Griffin's improved gas, 46 

 Fusel-oil, how prepared, 272 



Galvanism, copying drawings by, 139 

 Gas, coal, deterioration of over wa- 

 ter, 235 

 " " variable illuminating pow- 

 er of, 235 

 Gas pipes and their relations to elec- 

 tric discharges, 119 



