Index. 



487 



Sagartia viduata, 263. 



Sagittse, 211, 212. 



Salves of Central Italy, 420. 



Sailing beef, new mode of, 159. 



Salt lakes and mud volcanoes in the 



Crimea, 409. 

 Sand-clock used in photography, 133. 

 Saturn, remarks on, 54, 143. 

 Saturn's rings, notes on, 143, 238. 

 Science, pleasant ways in, 266, 342, 



461. 

 Scottish Meteorological Society, journal 



of, 63. 

 Sculpture, ancient, on reindeer horn, 



231). 

 Screw float for paddle wheels, 312. 

 Scripture and science, seven lectures, 



393. 

 Sea-fishing as a sport, 146. 

 Sea-water, action of on submarine tele- 

 graph, 119. 

 Selenological epochs of the moon, 374. 

 Selenite, impressions of in London clay, 



476. 

 Silica, 223. 



Sensitizing of iodide of silver, 154. 

 Serpentis, 140. 

 Sewage plant, 311. 

 Shield-bearing crustacea, 321. 

 Silk producible in these countries, 227. 

 Size of telescope star discs, 276. 

 Skeletons found at Langton Wold, 315. 

 Sm»l!-pox, 285. 

 Snail leeches, with a monograph of the 



British species, 81. 

 Snow-line, 247. 

 Soap bubbles, new experiments with, 



358. 

 Solar eclipse in Chili, 479. 

 Solar physics, De la Rue's researches 



on, 450. 

 Solar physics, 450. 

 Solution of the aniline dyes, 66. 

 Song of the cicada, 429. 

 Spectra of pigments, 348. 

 Spectroscope and microscope, 301. 

 Spectroscope, rigid, 69. 

 Spider, reasonable conduct of, 239. 

 Spiral nebula, 207. 

 Spiral vessels of plants, 319. 

 Spots on the sun, 166. 

 Spots on the sun and Jupiter, 78. 

 St. Michael's Mount, Cornwall, 318. 

 Stable equilibrium, 344. 

 Star disc, size of, 240. 

 Stars, colour of, 33. 

 Steam-engine, capabilities of, 313. 

 Steam-hammer, substitute for, 310. 

 Steel, formation of by gases, 65. 

 Sterrumetal, 231. 

 Stoneheuge, 72. 



Storage of dangerous substances, 65. 



Storm waves, 336. 



Striated muscular fibre development, 

 240. 



Structure and actions of the iris of the 

 eye in some species of fishes, 180. 



Structure and origin of solar volcanoes, 

 166. 



Subgenera of hyporhodii, 184. 



Submarine gardens, 260. 



Submarine light, portable, 67. 



Submarine telegraphy, 115. 



Substitute for the position micrometer, 

 447. 



Substitution for tea, 313. 



Suffolk crag, 33. 



Sugar, manufacture of, 314. 



Sugar of milk, 376. 



Sun spots and Jupiter spots, 78. 



Superphosphate of lime in the manu- 

 facture of sugar, 309. 



Telegraphic system, 115. "* 



Telescopes, clepsydra for driving, 421. 



Telescope star discs, 276. 



Temperature of air at Greenwich, 

 tables of, 106. 



Temperature of birds, 480. 



Temperature at which plants germinate, 

 480. 



Temperature of Polar Sea, 478. 



Temperatures of thermal springs at 

 Pyrenees, 443. 



Terrestrial gravity, 343. 



Terrestrial magnetism, 14. 



Thermal springs in the Pyrenees, 442. 



Thunderstorm in France, 80. 



Thunderstorm and water barometer, 78. 



Tobacco, for and against, 148. 



Torricellian vacuum, 100. 



Trade winds and anti-trade winds, 250. 



Transparency of the sea, 160. 



Trilboites, a section of crustacea, 323. 



Tumulus called Beller's Nap, in Glou- 

 cestershire, 15C. 



Turbine brush, 66. 



Turquoise, 223. 



Typhoons, 334. 



Ulva and enteromorpha, 261. 

 Unstable equilibrium, 344. 

 Upchurch ware, 161. 

 Ursse majoris, 138, 141. 

 Utilization of aniline dyes, 471. 

 Utilization of blast-furnace slag, 318. 



Varieties of snail-leech, 87. 

 Vegetable parasites of the human stin, 



397. 

 Vegetable transformations, 319. 

 Ventilating system of atmosphere, 248. 



