374 



INDEX 



Hell Gate, tides at 185 



Holes, drilled 105 



" punched 105 



Homologies of teeth of mammalia 314 

 " of vertebral appenda- 

 ges in fishes 303 



Hoosac Tunnel 49 



Horse, Arabian, a specific type . . 319 



Hosiery, poisonous 219 



Human hair 318 



" races, types of 322 



Hybrids, natural 319 



Hydration 190 



Hydraulic propeller 31 



Hydriodic acid 206 



Hydrogenium ix 



Ice, formation of, under water . . 157 



Ichthyosaurus 334 



Immense machines 105 



Implements, similarity of ... . 360 

 Incrustations, boiler vs. electricity 67 



Indelible ink, aniline 98 



Index of refraction 134 



Indigo, extraction of, from rags . lOQ 



Induction coils 174 



Inhalation of atomized fluids . . 299 

 Injector, Giffard, principle of . . 61 



Ink, indelible, aniline 98 



" printers', new 96 



Insects, ancestry of 316 



Insulation, telegraph 166 



Intercontinental seas 351 



Invariable temperature, internal 



stratum of 182 



Iron bridges, life of 46 



Iron, cast, coaling of 105 



'* galvanic deposition of ... 87 



" in Algeria 231 



" manufacture of . . . 19, 23, 26 

 " mechanical properties of . . 13 



'• pure 31 



Italy, cretaceous sea in 272 



Japan, stone age in 362 



Kabyles 320 



Kerosene, dangers from .... 20:5 

 Khasias 362 



Lake basins 241 



Lamps, new 85 



Language, articulate, seat of the 



faculty of 325 



Large roof 58 



Lead, action of water on ... . 228 



Leather, refuse, use of 73 



Leaves, why they fall 323 



Lever bridge 44 



Life in ocean depths 320 



Light, chemical action of ... . 143 



" electric I:i5 



" in flames, source of ... . 135 

 " influence of on carbonic an- 

 hydride 181 



" influence of on green color 



of plants 182 



" from metallic carbons . . . 182 



" magnesium 137 



" molecular influence upon . 131 

 " transmission of, through ani- 

 mal tissues 297 



Light vs. vitality 277 



Lightning 169 



Lightning rods 172 



Lime-light 78 



Linnaeus, lunar crater 349 



Liquid fuel 69 



" glue 100 



Liver, minute structure of. . , . 327 

 Livingstone, Dr., news from . . . 365 



Local anaesthesia 327 



Locomotives, American .... 60 

 '* European .... 60 



" for common roads . 62 



*' heavy 60 



Longitude, study of, by telegraph . 184 

 Lubrication, by paraffine .... 68 

 Luminous photographs .... 145 

 Lunar vegetation 349 



Machinery, elements of, museum of xiv 



Machines, immense 105 



Magnesia crucibles 232 



Magnesium light 137 



Magnetic disturbance during vol- 

 canic eruptions 184 



Magnetism vs. atomic and specific 



weight 163 



Magneto-electric machines , . . 161 



Maine, glacial action in .... 240 



Mammalia, homologies of teeth of . 314 



" with prehistoric man .355 



Man, antiquity of 356 



" fossil 257 



" prehistoric 357, 361 



" " mammalia associ- 

 ated with 355 



Manganese, in California .... 231 



Mankind, pedigree of 312 



Manual vs. mental labor .... 325 



Marine reptile, new 317 



Mars, rotation period of .... 349 



Mastodon, in California .... 256 



" " S. Carolina .... 272 



Mauritius, sugar-making in . . . 84 



Meat, fresh, supply of 74 



" processes for preserving 75, 232 



Medal, Albert 107 



3Ielting pointing of silicates . . . 153 

 Mental vs. manual labor .... 325 



" work vs. heat 285 



Blersey River bridge 44 



Metals, new 220 



Metamorphism 234 



Meteoric showers in 1868 .... 346 



" theory .350 



Methylene, bichloride of ... . 296 



Mica spectacle glasses 92 



Microscope, new 141 



Minargent 103 



Minerals of California 231 



" " Newfoundland . . . 231 

 Minute particles in air of cities . . .306 



Miocene flora, Arctic 273 



Mirrors, platiuizt'd 1"^8 



" silvering 90 



Mississippi, the upper 2.53 



Molecular forces 274 



" granulations 304 



" influence upon light . . 131 

 Monocarbon compounds .... 190 

 Monstrosities, artificial production 

 of 308 



