342 



INDEX. 



Organic force, conservation of. 188 



" substances, artificial produc- 

 tion of. 196 



Oxygen, absorption of by micro- 

 scopic organisms 238 



" new process for making ... 199 

 Oxy-Iiydrogen light, improvement 



in 156 



Oyster-breeding 299 



Ozone, new method of making 241 



" produced by plants 243 



Paint, healthfulness of fresh 210 



" new 209 



Palaeozoic rocks, microscopic organ- 

 isms in 272 



Paper, new uses for 98 



" straw, improved process for 



manufacturing 14 



Paradise, birds of. 307 



Parkesine 242 



Peat, use of in steel manufacture. ... 32 

 Pennsylvania, coal production of for 



1862 



Perfume vaporizer 



Petroleum, new facts concerning. 234, 



" production of. 



PhospiLoriLS, effects of on copper, 



brass 



' in the brains of man 



and animals 



" luminosity of. 



Phosphorescence 



Photographs, faded, restoration of. . 

 ' in natural colors. .176, 



" microscopic 



Photography and forgery 



" by absorption 



" celestial 



" military 



" new researches in...... 



" novelties in 



Photo-zincography 



Pisciculture, value of. 



Planets, new 



" orbits of the 



Plant, ugliest in existence 



Plants, evolution of ozone from 



" nature of the gas evolved 



from 



" rate of increase of some. 

 Pleistocene epoch, climate of Canada 



272 

 101 

 235 

 235 



207 



221 

 102 

 221 

 181 

 177 

 182 

 183 

 180 

 178 

 181 

 176 

 180 

 182 

 298 

 310 

 329 

 293 

 243 



288 

 290 



271 



Plumbago, artificial 195 



Pneumatic dispatch 43 



Poisons not always poisons 308 



Port-hole, impregnable 30 



Potash, from animal substances 242 



Printing in pigments 34 



" novelties in 37 



Projectiles, elongated 129 



" mechanical properties of 68 



Propeller, " Disc " 19 



Pyramids, age of the 286 



Quinia, detection of minute quanti- 

 ties of. 191 



Radiation and absorption of heat. . . . 153 

 Raiu, following the discharge of 



ordnance 333 



Rainbow, curious , 158 



in. 



Rainbows, supernumerary 159 



Refraction, atmospheric 133 



Repousse" work in the Exhibition of 



1862 39 



Repulsion, solar 186 



Rockets for war purposes 62 



Roofing, paper for 98 



Rooms, sounding properties of. 135 



Rubidium, diffusion of 194 



Rudder, new 47 



Saline solutions, vapors of 211 



Salt springs of Michigan 268 



Saturn, rings of, speculations on. . . .320 



Saturnian phenomena 319 



Science, courage of men of. 140 



" recent applications of to 



military purposes 80 



Scotland, modern elevation of land 



in 274 



Screw, double, for steamships 47 



Sea, saltness of. 250 



Sewage and health 216 



" of cities, utilization of 217 



Sheet-iron, Russia, fabrication of. ... 20 



Ships, gas and telegraph on board of 47 



" iron, deviation of compass on 122 



" unsinkable and incombustible 48 



Shot, cast vs. wrought-iron 57 



" effects of on iron plates 76 



" steel, flat-fronted 53 



Silicium, new gaseous compound of .194^ 



Silver, new substitute alloy for 208" 



Sirius, companion of. 316 



Skeletons, determining the antiquity 



of 306 



Skin, absorbing power of. 298 



Skulls, human, different types of 200 



Soapstone powder as a lubricator.. . .211 



Solar repulsion 186 



" system, permanence of 10Q 



Solubility, experiments in 209 



Sounds produced by electric currents 114 



Sounding properties of rooms 135 



Space, existence of an ether in 323 



Spectral analysis, new facts concern- 

 ing 174, 175 



Spectroscope, astronomical use of.. .330 



Spectrum, solar, researches on 103 



Sponges, artificial rearing of.' 299 



Stars, extent of our system of. 327 



" lines on the spectra of 171 



" scintillations of. 332 



" spectral analysis of the light 



of 330 



Steam, new application of 236 



Steam-engines, importance of hori- 

 zontal over vertical 18 



Steel, cast 27 



" display of at the Great Exhi- 

 bition 23 



" manufacture of. 23, 24, 25 



Stellar chemistry 171 



Stone, artificial 206 



" preservation of 200 



Stones, buildings, disintegration of .207 

 Stone ware, exhibit of in the Exhibi- 

 tion of 1862 39 



Storms, progression of. 134 



Sulphur, export from Sicily 269 



Sun, atmosphere of. 174 



" autographs of 181 



