366 



INDEX. 



Kock strata, recent formation of at Pevensey Castle, 38. 



Rockwork for aquaria and fern-cases, 36, 324. 



Koman consecratio coins, 47, 100. 



Eoot-foot animals or rhizopods, 149. 



Rosin bubbles, 173. 



Rotalia Beccarii, 145 ; repanda, 149. 



Rotation of earth, constancy of, 328. 



Rotifer vidgaris, 311, 312. 



Sabina consecration coin, 101. 



Sack sponge, 110. 



Saline principles in plants, 246. 



Sandal-wood, an oil-producing tree, 63. 



Sandonicum, or sandal-wood, 63. 



Sap, rise and fall of, in trees, 63. 



Satin-wood produces a wood-oil, 63. 



Saturn occulted by moon, 222. 



Scarlet, a dangerous colour for military costume, 323. 



Scavenger beetles, 306. 



Science, its accomplishments, 1 ; its invitations, 2 ; its 

 educational attractions, 2 ; an exponent of the Divine 

 mind in physical phenomena, 2. 



S ointiUations of the stars , 292 . 



ScUla maritima, crystals of, 243. 



Scolopendrium angustifohum, 76. 



Sea-shobe studies : flints and sponges, 29 ; pleasures of 

 the sands, 29 ; what is flint, 29 ; flint under the micro- 

 scope, 29 ; varieties of fossil forms in flint, 29 ; sponges 

 in flint, 29 ; artificial formation of flint, 30 ; what is a 

 sponge, 30, the hermit with a hump, 30 ; skeletons of 

 sponges, 30 ; cUia in sponges, 30 ; zoophyte life, 30 ; how 

 to keep Hving sponges, 31 ; shore-hnes and sorting action 

 of the sea exemplified in the geology of the Sussex coast, 

 37 ; deposit of spieula of sponges, 109 ; sponges com- 

 monly distributed, 110 ; selections of marine life for 

 aquaria, 112; chalk cliffs and flints, 113; formation of 

 chffs and promontories, 129 ; rock-forming microzoa, 145 ; 

 account of a roUed pebble inclosing fossil sponge, 201. 



Sea, the common locality of volcanic phenomena, 261 ; 

 ceaseless work of, 37 ; action in sorting drift materials, 

 38 ; successive inundations of the land,' 126, 235 ; distribu- 

 tion of volcanic centres on sea-coasts, 254. See also Sea- 

 shobe Studies. 



Seasons, records of, how to keep, 150. 



Sections of coal for microscopic uses, 344. 



Seleucidse, coins of, 206 ; the dynasty, 208. 



Seleucus Nicanor, coins of, 205. 



Self-division of vorticeUa, 311. 



Semitones in music, 297. 



Sexton-beetles, history of, 306. 



Shadow in eclipse, 280. 



Shaksperian forgeries, alleged, 72. 



Shells, colours of, 72. 



Ships, loss of large, 144. 



Shot, manufacture of, 353. 



Shore-lines, action of sea in forming, 38. See Sea-shobb. 



SUei. See Silica. 



SiiiicA, an ingredient in water-glass, 21 ; in Ramsome's 

 patent stone, 22 ; combinations with potash, 22 ; a non- 

 metallic body, 23 ; inflammable in oxygen, 23 ; to obtain 

 as pure flint, 23 ; its chemical properties, 23 ; as an acid, 

 23 ; a preservative of stone, 24 ; presence of, in sponges, 

 30 ; was largely diffused in the ancient seas, 30 ; present 

 in cuticle of some plants, 61 ; present in diatomaceae, 7. 70, 

 85, 89; geological history of, 113; produced in boiling 

 springs, 114; proved to be soluble, 114. 



Silpha, a genus of burying-beetles, 309. 



Silver, a product of lead ore, 351 ; how separated, 352. 



Simultaneous contrasts of colour, 240. 



Siphonia elastica, 63. 



Siskin, natural history of, 302 ; as a cage-bird, 303. 



Sisyrinchium anceps, 77. 



Skinning a bird, process described, 118. 



SkuU, abnormal, 105. 



Smeaton, John, birth and infancy of, 168 ; at the desk, 1G9 ; 

 pursuit of science, 169 ; his works and character, 171. 



Solar spots, seen by telescope, 213. 



Solar system, catalogue of, 6. 



Soldiers' clothing, proper colour of, 323. 



Solids, geometry of cube, 271. 



Solvent for woody fibre, 36 ; for dry paint, 323. 



Soul, the butterfly a symbol of, 82. 



Spathe, a form of inflorescence, 318. 



Spermatozoa of sponges, 112. 



Spheroidal figure of the earth, 329. 



Spider, physiology of, 217. 



Spiroloculina canaliculata, 149. 



Spiked blossoms of grasses, 317. 



SpongiUa in fresh- water, 110. 



Spores, rotary, of algse, 229. 



Stagnant pool, wonders of, 154. 



Staff, musical, 191. 



Stanhope lens, view of house-spider, 217. 



Stabs, light of, as seen from earth, 122 ; as seen under tele- 

 scope, 108 ; scintillations, 292 ; faUing, general account 

 of, 9 ; theories of their constitution, 131 — 133 ; list of re- 

 markable, 136; distinguished from planets, 4; maps of, 

 24. 



Stellate raphides of Indian fig, 244. 



Stereoscopic phenomena, 167, 252. 



Sting of nettle and wasp compared, 78. 



Stonybind, coal plants of, 236. 



Storge, its power over the habits of animals, 320. 



Strata, deposit of in aquarium, 230. 



Streak, varieties of in coal, 347. 



Structure of coal, as seen under the microscope, 345. 



Subjects for photography, 335. 



Sun, observation of with telescope, 213 ; to determine when 

 on the meridian, 355. 



SurireUa biseriata, 86. 



Swietenia mahogani, 63. 



Syrian coins, 204—208. 



Tanks for aquaria, 74 ; positions and plants proper for, 75. 



Target, colour of affects the eye, 323. 



Taxidermy, bird-preserving, 117. 



Telescope, equatorial, 4, 165 ; for the observation of birds 

 and insects, 36, 108, 359; for amateurs, 120, 252; obser- 

 vation of planetary conjunction, July 21, 1859, 222; lunar 

 eclipse, February 7, 1860, 278 ; how to use, 213. 



Telescopes for amateurs, 120, 252 ; for naturalists, 359. 



Telescopic appearance of a star, 108. 



Temperature under ground, 144. 



Tennis-ball of the sea, 201. 



Tegenaria domestica, 217. 



Terms used in notation, 191. 



Tertiary coals of Zurich, 346. 



Test-Unes for microscopes, 334. 



Tethys, physiological structure of. 111. 



Textularia Marise and deperdita, 148. 



Thermal springs, phenomena of, 327. 



Things oe the Season : August, 1859, to May, 1860, 36, 71, 

 107, 143, 180, 215, 251, 287, 323, 359. 



Tidal phenomena, 324. 



Tide of March 8, 1860, 324. 



Tides, plaything of, 201. 



Timber, growth of, 62. 



Time measured by geological changes, 40 ; how noted in 

 music, 298 ; accurately measured by the ancients, 331 ; 

 astronomical, to determine, 353. 



Toads in the heart of trees, 144. 



Toothed hammers of rotifera, 313. 



TorbanehOl mineral, the subject of a lawsuit, 348. 



Trap-rocks, formation of, 326. 



Traffic, British, in odours, 342. 



Trees, talk about, 61 ; endogenous, 61 ; exogenous, 63 ; 

 heights of, 64 ; leaves of, how arranged, 142. 



Tricks, teaching the siskin to perform, 303. 



Triloculina pulchella, 149. 



Triumphs of the photograph, 187. 



Truffle, how to gather wr preservation, 65. 



Truths of Nature set forth in fable, 83. 



Ulta crispa under microscope, 156. 



Under-ground temperature, 144. 



Urticaceous plants, 77. 



Unit of Time derived from rotation of earth, 331. 



Vaeietibs of coal, 327, 345. 

 Vanessa urtica, 79. 



