INDEX 



405 



PAGE 



71 

 129 

 114 

 5 



159 

 86 

 95 

 338 

 200 

 86 



Eings, Newton's, permanent reproduc- 

 tion of, 107 

 EOBIXSON'S screw and side-lever steer- 



40 

 103 

 239 



Rails, rolling railroad, 

 Eake, horse, improved, 

 Eats, way to clear a bouse of, 

 Bay Society, proceedings of, 

 Bays, heat of the sun's, 

 EEEVE'S breech-loading rifle, 

 Eenovator, flock, 

 Eeptile, new carboniferous, 

 Eetina, yellow spot of the, 

 Eifle, Beeve's breech-loading, 



ing gear, 

 Eoofing, cheap, 

 Bosin, bleaching, for soap, 



Eotifera, dioscious character of, 



365 



SAFFOED, Prof., on a new meteorite in 



Tennessee, 332 



Safety-valve, new, 43 



Saline deposits of South America, 319 



Saltpetre, on the formation of. in caves, 275 

 Sandstone, Conn, river, new fossil shell 



from, 340 



Science, physical, future progress of, 133 

 " recent progress of, 19 



SCOEESBT, Dr., 147 



Sea soundings, deep, in the Arctic Ocean, 322 

 Sea-weed for food, 354 



Seeds, cotton, purifying for the manufac- 

 ture of oil and oil cake, 118 



" experiments on the germination 



of, 15 



" germination of, 351 



Serpentine, composition of, 324 



Saw, circular, Barlow's patent, 



" Barlow's improved, 

 Saws, improvements in the manufacture 



of, 



Sawmills, Allen's variable feed for, 



Shafts, Improved engine connection for 

 transmitting motion to, 



Sheathing, copper, 



Shell, new fossil from Conn. Eiver sand- 

 stone, 



Shells, ordnance, &c., improved, 



Ships, new modes of raising, 

 " on the quality of copper for the 

 sheathing of, 



SiEiiEN's regenerative engine, 



Signals, railway night, 



Silver and gold, wealth of the world, 



Silvering, Petitjean's process for, 



Sleepers, cast iron, 



120 

 119 



121 

 120 



49 



252 



340 

 85 

 41 



247 

 46 

 58 

 328 

 271 

 57 



Smoke, Dumery's method of consum- 

 ing, 125 

 SMTTH, Prof., astronomical expedition 



to the Peak of Teneriffe, 13 



Snow, protecting influence of, on vege- 

 tation, 347 

 " and camphor, similarity of form 

 in, under certain conditions of 

 crystallization, 221 

 Soap, bleaching rosin for, 239 

 " are we to expect any improve- 

 ments in the manufacture of? 23J 

 " Japonitoline, 240 

 Soda, hyposulphite, employment of, in 



chemical analysis, 295 



Space, existence of an electrical ether in, 140 

 Species, transmutation of, in plants. .35" 



PAGE 



Specimens, geological, for microscopic 



purposes, 202 



^PENCE'S smoke-consuming furnace, 6S 

 Spindle, dead, Harvey's, 94 



Springs, boiling, in Utah, 301 



Spy-glass, new, 197 



Squares, the law of, applied to the trans- 

 mission of signals in submarine cir- 

 cuits, 143 

 Starch, reward for a substitute for, 18 

 Stalactites, Prof. Eogers on the growth 



of, 801 



Stauroscope, the, 202 



Steam, high-pressure, use of, 45 



'' waste, utilization of, 122 



Steamboats, increasing the speed of, 

 Steel and pig-iron, 267 



" cast, Prooman's process, 266 



" " hardening, 77 



" castings, 80 



". manufacture of, 77 



" Uchatius' process for manufactur- 

 ing, 263 

 Steering, screw and side-lover apparatus, 40 

 Stereoscope, investigations relative to, 199 

 Stereotyping, improvements in, 126 

 STEVEXS'S stoam-boiler, 47 

 Straining of ships in launching and dock- 

 ing, 40 

 Strata, inclined, possible origin of, 308 

 straw-pulp, bleaching, 242 

 Strychnia, and its detection in cases of 



poisoning, 288 



" new methods of detecting, 



289, 290, 291, 292 

 Subsoil plough, 131 



Sugar, action of, on the teeth, 369 



" new process of extracting from 



vegetable substances, 283 



" plan improved, 115 



Sun, heat of the rays of, 159 



" source of heat of, 1 60 



Swamps, cedar, of New Jersey, 342 



Target, moveable, 

 Teeth, action of sugar on, 

 Telegraph, globotype, 



" submarine Atlantic, 



Telescope, new form of, 



88 

 369 

 143 

 151 



201 



Temperatures, external, of the earth and 



planets, 154 



measuring, 161 



" production of high, 224 



Teneriffe, Peak, astronomical expedi- 

 tion to, 13 

 Teredo, or shipworm, investigations on, 359 

 Thermometer for measuring fluctuations 



of temperature, 161 



THOMPSON, Prof. W., 160, 182 



Timber bending machine, 65 



Timbuctoo, its population and commerce, 



390 

 Tomb, ancient, opening of, at Canosa, 392 



" in Crimea, 



Tobacco, pulp cigars, 

 TKEADWELL, Prof., 

 Trees, implement for cutting down, 

 Tulips, costly varieties of, 

 Turtles, American distribution of, 367 



Uchatius', Capt., process for manufactur- 

 ing steel, 263 



