INDEX. 



427 



PAGE 



Gas regulator, new, 07 



Gas-smoke, consumption of, 67 



(iiises, eii'ect.s oi heat on, 174 



Generation, apparent equivocal, 4''1 



spontaneous 3'Jl 



Geographical explorations, recent, 16 



'' exposition, novel, 67 



Geology, chemical, some new points 



in, Hunt, 304 



of !New Zealand, 288 



" Spitsbergen, 290 



" the central palaeozoic 

 basin of middle North 

 America, 312 



Geological revolutions, Winslow, 291 

 summary for 1859, 322 



time, conditions of, 284 



Georgia, diamonds in, 3-3 



hydraulic mining in, 323 



" remarkable vein of gold in, 327 

 Gestation, on some unusual modes 



of, 405 



Glaciers, ancient, marks of on the 



Green Mountains of Vt., 298 

 " theory of, 293 



Glass, action of water on, 254 



" strength and tenacity of, 194 



Globe, population of, 382 



Glycerine, distillation of, 107 



manufacture of, 282 



Gold deposits of Australia, 323 



" remarkable vein pi in Georgia, 324 

 Granite, overlying fossiliferous lime- 

 stone m Vt., 324 

 Grapes, experiments in ripening, 159 

 Greenland, mineralogy of, 321 

 GROVE, Mr., on electrical discharges, 121 

 Guano, " Sombrero," composition of, 351 

 Gun-cotton, blasting with, 194 

 Gunpowder, new process for manu- 

 facturing, 78 

 Gypsum, removal of from waters, 256 



researches on the formation 

 of, Hunt, 278 



Hadrosaurus, a new fossil reptile, 335 

 Hardness, tests for, 211 



HAYES, Dr. A. A., on the decompo- 



fitiou of coal, 228 



Health, influence of chemical manu- 

 factories on, 65 

 Heat, atmospheric absorption of, 17 

 ' ; conducting power of metals 



and alloys, 169 



" development of by solidifica- 

 tion, 178 

 effects of on different gases, 174 

 internal, of the earth, 171 

 motion produced by, directly, 174 

 radiant, photographic effects 



of, 161 



" unit of, 44 



HEWSON, F , on railway timber, 48 



HITCHCOCK, C. H., 278, 321, 322, 324 



Prof. E., 316, 322 



" Edward Jr., 351 



Hoe. horse, Wetherell's, ( Jt) 



HOPKINS, on the internal heat of 



the ear! h. 171 



HORSFOUD, Prof., 270 



Horse-railroads, improvements in, 41 



u 

 i; 

 u 

 tt 



P.A n r. 



Horses, improved shoe for, 96 



iir^T, T. bterry, 278, 299 



Hydiog'-n, phosphoretted, new pro- 

 ce.-s for prepaiing, 224 



Icebergs, remarkable in the southern 



ocean, 328 



Ice-boat, Wiard's, 30 



Ice phenomena, 179 



Igneous rocks and volcanoes, theory 



of, 299 



Imponderables, nature of, 124 



India-rubber, artificial, 233 



Induction, static. Faraday on, 125 



j Infernal machine. Italian, 77 



' Infusorial deposits of the tertiary of 



Virginia, 340 



Insect exterminating powders, 371 



Instruction, scientific vs. practical, 66 

 Iron and steel, experiments on the 



strength of, 113 



" improvements in 



manufacturing, 221 

 " carbide, use of for purifying 



water, 255 



" destructive action of oxidation 



on wood, 113 



" " effects of red-lead 



81 

 80 

 79 

 77 

 331 

 112 

 71 



u 



u 

 u 

 u 



on, 



enamel for, 



manufacture of in the U. S., 

 molten, as a war-missile, 

 native, from Tennessee, 

 oxidation of, 

 plates, vulnerability of, 

 smelting, Morgan's improve- 

 ments hi, 



sulphate, pomological use of, 

 Tissier's experiments on the 

 decarbonizatiou of, 



" transformation 



wrought, 

 Ivory, flexible, ' 



' rifled canison, 



of 



into 



Kaleidoscope top, 



KIRKWOOD, Prof., on the orbits of 

 .Mars and the asteroids, 



Lamp, coal-oil, 



Land, arable and forest of the U. S., 



Lava, remarkable jet of, 



LEA, Isaac, on the cretaceous system 



of the U. S., 



" 31. Carey, on the numerical re- 

 lation's of the elements, 

 Lead, alloys with antimony, 

 " effects of on the inferior ani- 

 mals, 



pipes, action of water on, 

 " purification of waters contain- 

 ing, 



" red, destructive effects on iron, 

 Letters, written, how to restore dam- 

 aged, 



Life, value of, 



LIKCIG, on scientific instruction, 

 Light, electric, 



" measurement of the chemical 



action of, 

 " Kiepce's researches on, 



221 

 371 



223 



215 



112 



72 



152 



422 



68 

 467 

 357 



337 



279 

 215- 



258 

 256 



258 

 81 



270 



382 



66 



116 



154 

 157 



