Savigny, 1422 Scales, of fishes, 1338-40 of insects, 1431-34 Schiaparelli, 356-57, 388, 394 Schickard, 119 Schiller, Jules, 105 Schmidt, 818 Schöpf, 712-13 Schwabe, Herr, 324, 326-27 Scoresby, 807 Scott, Walter, 763, 1022 Sculptor’s Workshop, the, 78 Sea, color of the, 709-13 depths of the, 680-89 distribution of the, 677-79 fauna of deep, 1304 flora of the, 1233-37 magnitude of the, 707 phosphorescence of the, 750-63 shore, the, 763-72, 1232-33 temperature of the deep, 739-40 water, organic life in, 1261 wonders of the, 1357-74 Sea-dust, 831-32 -horses, 1346-50 -pens, 754-55 -slugs, 1369-70 -urchins, 459, 1361-62 Sea of Aral, 582 Seals, 582 Sea-weed, Irish moss, 1257 Sargassum, 1263-68 Sea-weeds, 454, 1230, 1237-62 colors of, 1262 dulse, 1250 food of, 1261-62 fucus, 1239 laver, 1251 organs of, 1262 parasitic, 1246 spores of, 1262 Ulvæ, 1240 wracks, 1239 Seed, ejection of, 1007-16, 1199-1200, 1212 Seeds, 1002-16, 1104-5 Seiches, 574 Selenography, 376 Selvas, 647 Seneca, 284 Sensitive-plants, 1039, 1040 Sepals, 867-68 Septentriones, 82 Sequoia, 876-84 Serpent, the, 78 Serpents, 488, 1383-90, 1551, 1557 Sertularia, 1330 Sexual selection, 1491 Shagreen, 1339 Shakespeare, 1204 Shark, 1538, 1544 Shield of Sobieski, 78, 96 Shooting-fishes, 1351 Shooting-stars, 132 Sidereal universe, 30 Sidereus Nuncius, 377 Sigillaria, 464, 470, 476, 1230 Sigillariæ, 470 Silkworm, 1545 Silurian beach, 456-63 Silurian period, 461-63 fauna of the, 481 Simoon, 830 Sirius, 54, 56, 57, 63, 66, 75, 96, 97, 125, 187, 193, 203, 308 Sirocco, 830-31 Smith, Sir J. E., 998 Smith, Worthington, 1598 Smut, 1200 Snell, Willebrod, 800, 801 Snow, 807-9 red, of Alps, 514-15 crystals, 807-8 flakes, 808-9 Social plants, 1226 Soffioni, 518 Soil, absorption of moisture by, 588-90 and plants, 934-36, 969-72 Solar, corona, 342 spectrum, 337, 346 system, 30, 71-72 Solfatara, 518, 539 Somma, 542-43 Sorcerer’s Spring, the, 592 Southern Cross, the, 78, 99, 125 Space, 32, 33-42 Species, 984 Spectroscope, 333 Spencer, Herbert, 1466 Spermaceti, 1563 Sphagnum, 632, 633 Sphere, invention of the, 64 Spica, 57, 63, 66, 209 Spiders, 1578, 1600-1, 1612-14, 1634 Spines, 867 Spinneret, 1460 Sponges, 1305, 1307-13 Spores, fungi, 1199 lichens, 1212 of sea-weed, 1262 Sprengel, 1003 Springs, 592-604 mineral, 602-3 salt, 599-601 thermal, 594-99 Sprung, 792 Spurge, family of, 1163 phosphorescent, 1166 Squalls, 845-47 Squirrels, 1624-25 Stamens, 868, 1002 Staphilinus Cæsareus, 1568