330 



INDEX 



Preservation of meat 80 



" of steel from rust . . 96 



" of stone 51 



" of wines 206 



" of wood 82 



Processes, photographic, new . . 143 

 Propeller screws, new arrangement 



of 20 



" new water 21 



Prosser's lime light 87 



Prussic acid, action of 258 



Psychrometer, new H8 



Quicksilver of California .... 323 



Radiation, solar 305 



Kail, nine-inch 34 



" steel-headed 70, 72 



Railroad, Central Pacific .... 38 



" Mt. Cenis 36 



Railway, Channel 39 



East Indian, mountain . 35 



" invention, new .... 38 



Ramie, a new textile fibre ... 79 



Ransome's artificial stone .... 45 



Reagent, new 206 



Refuse, treatment of .91 



Reindeer period 315 



Remora, sucking disc of .... 280 



Reproduction of limbs 278 



Respiration in dangerous gases . 83 

 Retina, persistence of different col- 

 ors on 240 



Ribs, cervical, in man 278 



Ridgway's revolving battery . . . 117 

 Ritchie's Holtz electrical machine 161 



Rivers, course of 227 



Road, locomotive, 97 



Rosy aurora 303 



Rubber, vulcanized, deodorization 



of 96 



Ruelle, great cannon 120 



Rumford medal 284 



Russian America 307 



Sand battery, new 158 



Sea, luminosity of 266 



Sealing wax, cohesive force of . . 172 

 Seeds, action of electricity on . . 283 



" vitality of 283 



Selachians 279 



Sensitive photographic wet plates 143 

 Sharks, period of incubation of . . 280 



Ships of war 99 



Shot, chilled 108 



" initial velocity of, how meas- 

 ured 124 



Siemens' electro - magnetic appa- 

 ratus 148 



furnace 13 



Silica in grain stalks 282 



Silicium in iron 65, 



Silk from fishes' eggs 282* 



Silurian fossils 229 



Siluroid fishes 271 



Silver in the blast furnace .... 209 



" in galena 222 



Skeleton leaves 275 



Skull, theory of VJ62 



Snow animalcules 281 



Soap-bubbles, colors of 136 



Society of Arts, Albert medals . . 124 



Softening of water 83 



Soils, specific heat of 203 



Solar eye-piece, new 291 



" radiation 305 



" ventilator 171 



Soldering of iron and steel ... 65 

 Solids, molecular movement in . . 126 

 Sound, conduction of, by hydrogen 



and air 165 



" influence of, on flame . . . 166 



" refraction of 172 



" velocity of 172 



Spakowski's night signal .... 89 



Species, mutability of 261 



Specimens, anatomical, new way of 



preparing 260 



Spectra, wave lengths of . . . .1 



Spectrum analysis 133 



" of iron flame 134 



" of light through ice . . 134 



Speed of mechanical force . . . 130 



Spontaneous generation .... 264 



" movements in plants 274 



Spots on the sun 289 



Star, new double 287 



Stars, variable 2U1 



Statistics of the war 319 



Steam boilers, cast-iron .... 59 



explosions of ... 58 



" overheated ... 56 



" generator, gas 61 



Steel castings 73 



" expansion and contraction of 68 



" guns, punched 118 



" headed rails 70,72 



" manufacture of, by magnet- 

 ism 63 



" masts 73 



" preservation of, from rust . . 96 

 " processes of making . . . 63, 64 

 " under the microscope ... 67 



Stellar spectra 134 



Stereoscope, real image .... 132 



Stigmatypy 125 



St. Louis bridge over the Mississippi 32 



Stone, artificial, Ransome's ... 45 



" cause of decay in .... 50 



liquid 46 



preservation of 51 



Storage of gunpowder 101 



Strength of cannon 112 



Strychnia, antidote to 257 



Submarine photography .... 146 



Sucking disc of remora 280 



Suez canal 32 



Sugar in muscle 277 



Sulphuretted hydrogen solution, 



preservation of 187 



Sulphurous acid, production of . . 210 



Summer, Indian 301 



Sun, distance of 288 



" engraving 139 



" new use for 171 



" spots .289 



Sunlight, action of, on glass . . . 198 

 " chemical force of ... 141 

 " color of 130 



Taconic system ..... 10, 234 

 Tallow tree 92 



