INDEX 



329 



Luminosity of the sea . . . .266 



Lunar crater Linnzeus 293 



Lycoperdon, growth of 273 



Madagascar, natives of 267 



Magnesium light .87 



Magnetic chamber, neutral . . . 170 



" phantoms 171 



Magnetism of gases 170 



" manufacture of iron and 



steel by 62 



" testing iron by ... 173 

 Magneto - electric machine, im- 

 proved 155 



Malleable glass 98 



Man, antiquity of 308, 317 



" compared with the apes . . 268 



Mars, the planet 292 



Mass of Jupiter 291 



Mastodon, geological relations of . 227 

 Matches without phosphorus ... 98 

 Matter, ultimate constitution of . 126 



Meat, preservation of 80 



" transportation of .... 81 

 Mechanical force, speed of ... 130 



Mercerized cotton 78 



Mesotherium 282 



Messina, .bridge over Straits of . . 32 

 Metal, color of, when heated . . .171 

 Metallurgic process, new .... 211 



Metals, the precious 223 



" transparency of .... 75 



Metamorphism 225 



Meteoric shower of Nov. 1867 . . 296 



Meteorites, origin of 202 



Meteorometers, telegraphic . . . 169 



Metre, electric distance 157 



Mica, new uses for 77 



Microscopic appearance of steel . 67 

 Migrations of the Polynesians . 268 

 Milk, artificial, Liebig's . . .246 



Miller's boiler 60 



Mind, and correlation of force . 238 

 Mineral, new, from Borneo . . 215 

 Mirrors without mercury . . .76 

 Molecular movement in solids . 126 

 Monitors vs. turret ships . . .99 



Mont Cenis railroad 36 



" " tunnel 40 



Moon, influence of on the weather 304 

 Moons of Jupiter, eclipse of ... 291 



Moulting in fishes 279 



Mountain attraction 129 



railway ... 35, 36, 37, 38 



Mountains, origin of 227 



Muscle, sugar in 277 



Muscles in fishes, homologies of . 263 



Muscular force of insects .... 280 



" power, food as the source 



of 245 



Mutability of species 261 



Myrmecodia tuberosa 283 



Natives of Madagascar 267 



Natural colors in photography . . 14( 



Near-sightedness 238 



Nerves, microscopic examination of 277 

 Nests, birds', relation of plumage to 264 



Neumeyer's powder 106 



Neutral point, Brewster's .... 135 

 New York city, food of 323 



28* 



Newton and Pascal correspondence 10 

 Niagara Falls, new suspension 



bridge 32 



Night signal, Spakowski's .... 89 

 North America, ancient vegetation 



of 231 



Nova Scotia, gold in 230 



Numbers, fatality of 175 



Obituary 324 



Objectives, improvement in ... 137 



Ocean currents 127 



" ozoniferous currents of . . 301 

 Organisms, experiments on, in 



heated water 264 



Overheated boilers 56 



Oxygen, preparation of ... 204, 210 



Ozone 200, 210 



" produced by plants . . . 276 

 Ozoniferous currents of the ocean 301 



Paddle-wheel, submerged, horizon- 

 tal 19 



Paint, uninflammable 95 



Paper from wood 96 



Parasitism, crustacean 266 



Paris Exposition 3 



Partzite 221 



Pascal and Newton correspondence 10 



Pavement, asphalt 85 



Perfect harmony 165 



Permanent photographs .... 142 

 Persistent action of light .... 136 



Petroleum as fuel 52 



deodorization of ... 96 

 " igniting point of . . .188 



" origin of 187 



Phosphorus, luminosity of ... 178 



" red, crystallization of . 1% 



Photographic light 147 



Photographs, permanent .... 142 



" vitrified 141 



Photography, effects of snow and 



ice in 146 



" improvements in . . 145 



natural colors in . . 140 



" nature of latent im- 

 age in 137 



" submarine .... 146 



Photometric apparatus . . . 130, 135 



Photomicography 147 



Physical exercise, abuse of ... 248 



Pictorial printing 125 



Pine tree, uses of 92 



Planet Mars 292 



Planets, new, in 1867 295 



Plants, geography of 276 



" ozone produced by ... 276 

 " spontaneous movements in 274 

 Platinum and steel, alloy of ... 221 

 Plumage of birds in relation to 



mode of nidification 264 



Pneumatic despatch 27 



Poisons, action of 255 



Polarization, right and left-handed 178 

 Polarizing photometer, new . . . 135 

 Polynesians, migrations of ... 268 



Population, density of 322 



Potash, extraction of, from felspar 204 



Precious metals 223 



Preservation of bottom of iron ships 96 



