INDEX. 



421 



Fishes, embryology of, 



remarkable fossil, 



Flames, colored, production of, 



Flesh, preservation of, 



Flies, parasites on, 



Floras, American fossil, 



Fluids, movements of in porous 

 bodies, 



Fogs, dry. 



Food, animal and vegetable, rela- 

 tions of, 



Footprints on sea-margins, how pre- 

 served, 



Force, conservation of, 

 " Faraday on, 

 " ' new cosmical, 



Forces, physical, correlation of, 



Forgings, large, 



Fossils, curious accumulation of, 



FRANCIS, S. W., copying-machine, 



Fuel, wet, combustion of, 



Fungi, growth and habits of, 



Furnaces, action of heat-diffusers in, 

 for burning wet fuel, 



Fusible metal, new, 



Gas-burners, improvements in, 



Gas-engine, Lenoir's, 



Gas-lime, depilatory action of, 



Gas-meters, observations, 



Gases, dynamics of, 



Gearing," frictiona), 



Geographical positions at the "West, 



table of, 



researches, recent, 

 Geological formations, connection of 



successive, 



speculation, interesting, 

 summary, 

 Glaciers, motion of, 

 Glasses and capsules, method of 



cleaning. 



Glue, liquid, preparation of, 

 Gluten, new application, 

 Gold and silver coinage, wear of, 

 GRAHAM, Col., on the existence of 

 tides in the great Amer- 

 ican lakes, 



on the latitude and longi- 

 tude of locations at the West, 

 Granite, formation of, 



use of for architectural pur- 

 poses, 



Gravitation, influence of light on, 

 Grease-spots, removal of, 

 Great Britain, vital statistics of, 

 Great Eastern, "beaching" of the, 

 Greece, interesting fossils from, 

 Grinding apparatus, new, 

 Guano, birds forming, 

 Gum, new vegetable, 

 Gun-cotton, use of for filtering cor- 

 rosive liquid, 



Gun-metal, experiments with, 

 " improvements in, 



Gun, monster, 



" "Whitworth, new, 

 Guns, Whitworth's and Armstrong's 



compared, 

 Gunpowder, consolidated, 



experiments on the 

 properties of, 



PAGE 



355 

 342 

 223 

 246 

 365 

 319 



175 



408 



252 



314 

 160 

 131 

 135 

 134 

 40 

 301 

 70 

 35 

 345 

 34 

 35 

 205 



102 

 28 



224 

 86 



138 

 39 



410 

 9 



295 

 340 

 304 

 305 



223 

 91 



217 

 92 



167 



410 

 279 



98 

 135 

 224 

 376 



23 

 320 



85 

 365 



PAGE 



GFYOT, Professor, on the AJleghany 



mountain range, 276 



Gypsum, value of as a disinfectant, 233 



217 

 41 

 54 

 50 

 44 



48 

 271 



Heat and water, joint action of on 



different substances, 

 " diffusers, action of, 



mechanical theory of, 

 " solar, 



Height of the human species, 

 Himalaya mountains, ascent of, 

 HITCHCOCK, C. H., on the age of the 



coal-beds of Kew England, 

 Hops, extract of, 

 HOTCHKISS' new projectile, 

 Huma^n proportions, 



species, height of, 

 Hydrophone, the, 



Ice, shower of, 



" solution of in inland waters, 

 " strength of, 

 India-rubber artist, 



" new method of vulcan- 

 izing, 



Indigo, decoloration of, 

 Ink-spots, removal of, 

 Inkjimperishable, 

 Insanity, conditions of, 

 Iodine, distribution, 

 Iron, allotropic condition of, 

 cast, experiments with, 

 elasticity of, 



" forgiugs, large, strength of, 

 " improvements in the manuiac- 



ture of, 

 " influence of titanium on the 



quality of, 

 " malleable, improved process 



for preparing, 



" meteoric, remarkable mass of, 

 " native, on the supposed exist- 

 ence of in Africa, 

 properties of, in powder, 

 " thin cast, 

 Ivory trade, the, 



Japanese science, 



Jewels, new method of setting, 



Knife, improved pruning, 



221 

 34 

 160 

 158 

 377 

 279 



297 

 222 

 49 

 377 

 377 

 182 



176 



185 



176 



68 



220 

 215 

 224 

 220 

 367 

 272 

 197 



41 

 177 



40 



201 

 199 



201 

 307 



307 



197 



40 



77 



147 

 124 



94 



Lakes, American, tides on, 167 



Lama, acclimation of in France, 365 

 LEA, M. Carey, on the relations of 



the elements, 192 



LENOIR'S gas-engine, 28 



LESLEY, J. P., on the geology of the 



White Mountains, 278 



Light, absorption of, 149 



and heat of the sun's rays, 



action of on the eye, 160 



chemical analysis by means 



of, 191 



influence of on gravitation, 135 

 loss of by glass shades, 149 



persistent activity of, 

 solar, 158 



use of magnesium as a source 



of, 

 Lightning-rods, theory and construe- 



59 tiou of, 

 36 



203 

 105 



