420 



INDEX. 



PAGE 



Chili, astronomical position of the 



coast of, 12 



Chloric ether, commercial, 249 



Chloroform, ana-sthetic action of, 249 

 Chromeidoecope, the, 147 



Chromo-typography, 185 



Chronology, Mosaic, not inconsistent 



with geological facts, 335 



Churn, improved, 94 



Climate, change of, in different parts 



of the earth, 287 



Clock, the "screw," 88 



Coal flora, correspondence of Euro- 

 pean and American, 339 



" formation of New England, age 



of, 297 



" formation of, 339 



" measures,, are they a single for- 

 mation, 338 

 Coal-oil, a preservative of potassium, 214 

 " use of, 86 

 Coal, on the isthmus of Chiriqui, 12 

 Coal-tar, as a disinfectant, 232 

 " products obtained from, 231 

 " value of, 231 

 Cocaine, a ne\v alkaloid, 252 

 Cocoa-nut oil, influence of on the 



blood, 368 



Coinage, wear of, 92 



Cold, influence of on seeds, 352 



" on high mountains, cause of, 166 

 Colorblindness, 139 



Colors, new, used in calico print- 

 ing, 73, 74 

 photographing of, 159 

 Coloring matter of flowers and 



leaves, 254 



Comets, observations on, 401, 406 



Cooking, military, 59 



Corn-stalk cutter and shocker, 94 



Cretaceous system of Western North 



America, " 13 



Crystal, growth of a, 137 



Damp, exclusion of from brickwork, 98 

 Dead, attitudes of, 371 



Debusscope, the, 147 



Denmark, aboriginal inhabitants of, 326 

 Dentifrice, use of sulphur as a, 225 



Dentistry, the art of, 91 



DENTON, Mr. W., on the origin of 



" rock" oil, 306 



Desert of Sahara, topography of, 274 

 Dianium, a new metal, 195 



Disease, produced by chemical 



agents, 256 



Disinfectants, use and composition 



of various, 232 



Dismal Swamp, vegetation of the, 338 

 Dissection wounds, treatment of, 225 

 Distances, new micrometer for meas- 

 uring, 67 

 Drains and water-courses, preven- 

 tion of obstructions in, 66 

 Drawing and engraving, improve- 

 ments in, 68 

 from relief models, 67 

 Drift, flint implements found in, 330 

 " of the friassic epoch, 301 

 Drunkenness, effects of on the off- 

 spring, 367 

 remedy for, 272 . 



Dura Den. Scotland, fossils of, 

 Dust, atmospheric, composition of, 



" storms, 

 Dyeing, theory of, 

 Dyes, new, 



PAGE 

 342 

 362 

 409 

 212 

 214 



Earth, change in the axis of the, 287 

 motion, annual and diurnal, 



made visible, 172 



" temperature of at great 

 depths, 285 



Earth's internal structure, possibility 



of studying, 173 



Earthquake in New England, 342 



phenomena, 308 



Earthquakes, number of recorded, 308 

 Eclipse, solar, of July, 1860, 392 



Eggs, fossil, from the oolite, 304 



Electric conduction across water, 121, 122 

 by metals, 131 



" conductivity, effects of pres- 

 sure on, ' 121 

 " light, Gassiot's improved, 108 

 " use of for lighthouses, 109 

 " Way's new, 108 

 Electric-light telegraph, 111 

 Electric pile, 120 

 sparks, analysis of, 112 

 Electricity and magnetism, 116 

 atmospheric, requisites for 



investigating, 103 



of the torpedo, 113 



velocity of, 112 



Electro-magnetism, weaving by, 113 



Electro-metallurgy, new application 



of, 124 



Electrotype work, durability of, 124 



Element, new metallic, 195 



Elements, curious numerical rela- 

 tions of the, 192 

 probable compound na- 

 ture of some, 192 

 Elephants, swamping of, 366 

 Embroidery, Chinese, 82 

 imitation, 82 

 Embryology, new facts in, 356 

 of fishes, 355 

 of the skate, 354 

 Emery wheels, vulcanized, 85 

 EMMOXS. Dr. E., Tacouic system, 342 

 Enamels, photographic, 155 

 Engine, Ericsson's caloric, 27 

 Engravings, new method of copying, 156 

 Etna, geological history of the" vol- 

 cano, 312 

 Eye, means of seeing the circulation 



in the, 149 



" remedy for lime in, 309 



" separation of light and heat in, 160 



Fabrics, non-inflammable, 79 



' rendering incombustible, 215 

 FARADAY on lighthouse illumina- 

 tion, 109 

 " the conservation of 

 force, 131 

 Faucet, self-measuring, 85 

 Fecundity of molluscs, 357 

 Fermentation and putrefaction, 229 

 Pasteur's researches on, 223 

 Fire-alarum, new, 90 

 Fire-proof composition paint, 98 



