Scaliger, 299 Schaeberle, 93 Schaer, 88 Scheiner, 4, 150, 188, 195 Scheuter, 30 Schiaparelli, 22, 326 Schjellerup, 226, 228, 230, 231, 264, 277, 281, 340 Schlesinger, 183 Schönfeld, 287 Schiraz, 47 Schmidt, 51, 188, 220, 271 Scholl, 79 Schröter, 13, 20, 21, 22, 24, 26, 48 Schuster, 2, 148, 149, 150 Schwabe, 5 Scorpio, 263-265 Sculptor, 301 Scutum, 299 Searle, 132 "Secondary light" of Venus, 23-28 See, Dr., 12, 13, 33, 58, 96, 161, 164, 165, 210, 211, 281, 282, 354 Seeliger, 181, 206 Seneca, 218, 220 Serapis, 145 Sestini, 190 "Seven Perfect Ones," 256 Sextans, 298 Shaler, 48 Sharpe, 357 Shelley, 356 Shicor, 274 "Ship," 285 "Sickle," 259 Signalling to Mars, 65 Sihor, 280 Silkit, 264 Silvestria, 124 Simeon of Durham, 53 Simonides, 255 "Singing Maidens," 256 Sirius, 138, 156, 157, 160, 163, 236, 274, 280, 282, 283 Slipher, 60, 87, 161, 178 Smart, 109 Smyth, Admiral, 12, 72, 77, 107, 136, 140, 145, 170, 176, 190, 194, 253, 259, 351 Snyder, Carl, 8, 345 Sobieski, 299 Sola, Comas, 81, 87 Somerville, Mrs., 357 Sothis, 286 Southern Cross, 293, 344 Spectra of double stars, 162 Spectrum of gaseous nebulæ, 195-198, 212 Spectrum of sun's chromosphere, 4 Spencer, Herbert, 193 Sphinx, 261 Spica, 156, 236 Spiral nebulæ, 213 Star magnitudes, 311 "Star of Bethlehem," 17, 18 Stars in daytime, 158 Stebbins, 51 Stockwell, 18, 331 "Stones from heaven," 125, 126 Stoney, 133 Strabo, 127 Stratonoff, 151, 320, 321 Stromgen, 88 Strutt, 7 Struve, 113, 240 Struyck, 54 Succulæ, 253 Suhail, 283, 286 Sun darkenings, 5, 335, 336 Sun's heat, 7 Sunlight, 1, 2 Sun-spots, 5, 6 Swift, 102 _Sydera Austricea_, 5 T Tacchini, 22 Tamerlane, 238 Tammuz, 261 Tardé, 4 Taurus, 251 Taylor, 40 T Coronæ, 184 Tebbutt, 183, 278 Telescopium, 302 Temporary stars, 180-182, 265, 267, 343 Tennyson, 40 Terby, 88 Tethys, 89 Thales, 357 Thebes, 271 Themis, 88-90 Theogirus, 279 Theon, 245 Theseus, 257 Thome, 101 Thucydides, 331 Tibertinus, 281 Tibullus, 282 Tides, 40 Timocharis, 340 Tin, 179 Titan, 85, 88, 89 Titanium, 179 Toucan, 308 Transits of Mercury, 14, 15 " of Venus, 337, 338, 339 Triangulum, 271 " Australis, 306 Trio, 220 Triptolemus, 257 Triton, 93 Trouvelot, 21, 22, 78, 211 Tumlirz, 46 Turrinus, 220 Tycho Brahé, 10, 30, 99, 145, 179, 298 Typhon, 263, 272 U Ulugh Beigh, 238, 276, 278 Underwood, 85 Uranus, chap. x.; spectrum of, 91, 92 Urda, 71 V Valz 72 "Vanishing star," 59 Varvadjah, 236 Vega, 148, 156, 244 Vencontre, 220 Venus, chap. iii.; apparent motion of, 28; supposed satellite of, 28, 29; transit of, 337-339 Veronica, S, 145 Vesta, 70