INDEX. 



415 



Railroads, London, capacity of, C5 



Rain-fall, great, in Ohio, 392 



Rain following the discharge of ord- 

 nance, 392 

 Rain gauge, new, 165 

 liarns, steam, use of in naval war- 

 fare, 79 

 Red Sea, physical geography of, 259 

 Refrigerator without ice, G4 

 Regelation, phenomena of, 151 

 Repulsion, a universal force, 99 

 Respiration and pulsation, researches 



on, 218 



Respiration, new apparatus for exper- 

 imenting on, 215 

 Resuscitation of life, 355 

 Rifle, position of. in firing, 357 

 Rifled cannon, notes on the used and 



construction of, 87, 88, 89 



Rifled ordnance, influence of on mod- 

 ern warfare, 87 

 Rocks, igneous, phosphoric acid in, 220 

 oldest American, 273 

 " oldest known, 250 

 Rodman gun, trial of the, 92 

 Rodman's experiments in gunnery, 93 

 Rope, wire, experiments with, 45 



Sacrificial metals, 118 



Sand, new mode of preserving im- 

 pressions on, 65 

 Saturn, ring of, 388 

 Sawyer's shot, 89 

 Sea-weed, important use of, 310 

 Sensation, processes involved in, 350 

 Shells, distorted growths in, 330 



" fresh-water, rate of increase 



of, 328 



" filling with molten iron, 89 



Shinkl's shot, 89 



Ship-building, angulated principle 



of, as a protection against ordnance, 85 

 Ship-building, best woods for, 315 



Ships, iron-clad, 7, 69 



Silicification, 247, 248 



Sinus, movements of, 388 



Silver alloy, new, 176 



Silver test, 176 



Silvering glass and porcelain, 180 



Smoke from gas-lights, 66 



Soil analysis, 229 



Soils, exhaustion of, 226 



Solar atmosphere, researches on the 



constitution of the, 139 



Solar eclipse of 1860, 384 



Solar system, geological phenomena 



of, 261 



Solutions, boiling points of, 157 



Sound and vision, 164 



Sounds, registration of, 162 



Sounding-apparatus, new, 166 



Soap, value of different kinds of, 207 

 Social science congress, 7 



Spectral lines, photographs of, 141 



Spectrum analysis, 133 



Spiders, curious instinct of, 334 



Spitzbergen, scientific exploration of, 260 

 Star-charts, new, 389 



Steam, high-pressure, future of, 23 



Steam-rams, in naval warfare, 78 



Steam, superheated, 27 



" working expansively, 26 



Steel, chemistry of, 6, 177 



Steel tools, protection against rust, 40 

 Stereoscope, practical value of the, 142 



Stone, preservation of by silicifica- 



tion, 248 



Strata, origin of curved, 307 



Subaqueous explorations, 132 



Submarine telegraph, 120 



Sulphuric acid, improvements in the 



manufacture of, 245 



Sun and moon, relative brightness of, 381 

 Sun, autobiography of, 145 



Sun's heat, possible age of, 150 



Sun's spots, periodicity of, 390 



Sun's surface, photographs of the, 146 

 Sunshine-recorder, the, 131 



Surgery, electric light applied to, 107 



Taconic System, 278 



Tea, use of in the healthy system, 236 

 Teeth of the different races of men, 362 

 Telegraph, Atlantic and Pacific, over- 

 land, 122 

 Telegraph, submarine, 120 

 trans -Pacific, 126 

 Telegraphs, private, 122 

 Telegraphic night-signals, 128 

 Thaliurn, a new element, 138 

 Theatres, new mode of lighting, 131 

 Tides, lunar, on the American lakes, 170 

 Tin ore from Maine, 308 

 Toads, vitality of, 332 

 Tobacco, nicotine in, 313 

 " separation of nicotine from 



the smoke of, 211 



Tomb, Etruscan, 402 



" Egyptian, opening of, at 

 Thebes, 396 



Trees, dwarf, how the Chinese make 



them, 310' 



Trocheido scope, the, 130 



Turpentine as an {esthetic, 197 



Varnish /India-rubber, new, 54 



Vegetable principle, new, 224 



Vegetation, the influence of electric 



light on, 106 



Victoria bridge, testing of the tubes 



of, 31 



Vision and sound, 164 



Vision, physiology of, 341 



Volcanic eruption in Africa, 305 



Volcanoes, evolutions of ammonia 



from, 304 



Walrus, observations on the, 261 



War, improvements in the science of, 69 

 Warfare, influence of rifled ordnance 



on, 87 



"Warrior " frigate, description of, 69, 70 

 Water, color of, 131 



expansion of, thoughts on, 152 

 " freezing and boiling points of,15(5 

 " lines of, deepest around the 



British Isles, 268 



movements of sea and lake, 167 



possible disappearance of 



from the surface of the 



earth, 264 



Water-glass, uses of, 246 



Whalebone, substitute for, (15 



Widowhood, physiology of, 342 



Wine, charged witli gases, 195 



Wire-rope, experiments with, 45 



Woods lor ship-building, 315 



Yang-tse river, exploration of, 395 



Zinc, American, 4(i 



" sheet, use of for roofing, 46 



