INDEX. 



397 



PAGE 



Eocks, grooving and polishing by the 



action of sand, 286 



Eocks, improvements in blasting, 

 Eocky Mountains, geology of, 291 



Boosting of birds, 353 



Koss, Sir John, on the causes of the 



Aurora, 151 



Iludder, improved, 31 



Saliva, use of, 255 



Salmon, ova of, 361 



Salt in California, 332 



" manufacture of, in the United 



States, 302 



Salmon, artificial propagation of, 354 



Sand, action of. on hard rocks, 286 



Sanding apparatus for railways. 



62 



Sandstone, red, of the Connecticut Val- 

 ley, asre Of 317 

 " new fossils in, 316 

 Sarcophagus, porphyritic, for the Duke 



of Wellington, 106 



Sardines in California. 362 



Sardinia, elevation of land in, 300 



Saturn and Uranus, 3S7 



Saturn's rin^r, 379 



Saws, straining by atmospheric pressure, 114 

 Science, index to mathematical and 



physical, 4 



" progress of, for 1855, 321 



Screw fastenings, 130 



" propellers, construction of, 33 



improvements in, 31-2 

 " steamers, side, 31 



Sea, object of salt in, 261 



Sea-weed for soap, 245 



Seeds, influence of light on the germin- 

 ation of, 339 

 Sewing-machines, improvements in, 101 

 musical, 102 

 " " Cowperthwait's new, 102 

 " " Harrison's " 102 

 " " Eobinson's " 102 

 " " Singer's " 102 

 " " Wheeler & Wilson's " 102 

 Shrifts, wood-lined bearings for, 35 

 Ship-building, novelties in, 30 

 Ship, new method of repairing, without 



docking, 27 



Ships and steamers, improvements in, 28 

 Shuttles, improved, 81 



Siirht, physiology of, 170 



Silicates and aluminates, production of, 222 

 Silicium and titanium, 213 



Silver, iorlo-nitrate of, 235 



Sizing paper, 24S 



Skates, improved, 118 



Slate, machine for quarrying. 87 



" " trimming and cutting, 87 



Bias, utilization of, 207 



Sleeping in rail-road cars, device for, 61 

 SMITH, DR. J. LAWRENCE, 325 



Smoke, consumption of, 73 



" nuisance, abolition of, in England,278 

 Smokeless Furnaces, 6S-9 



Soap and oils, improvements in prepar- 

 ing, 242-3 

 " fish-blubber, 243 

 " from sea-weed, 245 

 " from linseed oil-cake, 242 

 Bounding instrument, Brown's patent, 89 



PAGE 

 Spiritual phenomena, so-called, Dr. Bell 



on, 154 



Spring, air, for rail-road cars, 56 



Springs conical plate, rail-road car, 56 



" for fire-engines. 76 



Stars, number of double, 379 



" shooting, observed in 1S55, 373 



" variable, 378 



Steam, application to agricultural pur- 

 poses, 63 

 music, 37 



Steam-ship Ocean Bird, construction of, 29 

 " Persia, " " 2^ 



Steel, curious production of, 1"-' 



" improvements in the manufacture 



of, 65 



" manufacture of, 



Stomach, action of alcohol on, 270 



Stone, marbleizing the surface of. 129 



Stones, artificial, 263 



Stove, Dr. Arnott's improved, 70 



Straw, paper from, 82 



Subjects for investigation and premium, 23 

 Sugar refining, improvements in, 273 



Sun, constitution of, 160 



Superior, Lake, district, mineral wealth 



of, 309 



Surveying instrument, new, 197 



Switch, Dick's self-acting, 



59 



Tailor's measures, new form of, 131 



Tallow, improvements in bleaching, 245 

 Tanning, Enos's improved process, 251 

 Wattlcs's " " 250 



Tar-coal, its products, 



Telegraphic commutator, 146 



Telegraph, electric, in India, 144 



Farmer's improve- 

 ments in, 144 

 " " Mediterranean sub- 

 marine 149 

 " " wires, discharge of 



electricity from, 140 

 " " " induction of 



electric currents in, 147 



Telescope, Lord Eosse's, revelations of, 380 

 photographic, 173 



Temperature, effect of slight changes on 



marine animals. 353 



Thermo-electric currents, 143 



Thermometers, degrees and zero of, 189 

 Thompson's, circular self-acting gate, 134 

 Tide-guages and electric registers, 150 



Titanium, metallic, 213 



Torpedo, anatomy of. 351 



Tree, fossil, found within the Arctic cir- 

 cle, 310 

 Trees, novel machinery for felling, 115 

 Tree-nails, machine for making, 86 

 Truck, safety rail-road, 62 

 Tunnel between England and France, 26 

 Tuyre, for smith's hearths, improved, 67 

 Type, improvements in the manufac- 

 ture of, 229 

 " setting by machinery, 110 

 " machine 'for distributing, 109 

 Typosrrapher, Jones's, 107 

 Tyres; steel, 66 



Vegetable and animal kingdoms, distinc- 

 tions between, 



342 



