Theon of Smyrna, 135, 144
Tides, 134, 257, 445
Tierce, 220, 347, 348, 372
Tiin^us, 82, 101, 238
Time, measurement of, 25, 47, 84,
8G, IGl, 162, 170, 180 Thule, 157
Timocharis, 124, 125, 144 Toledo, 202, 213
„ tables of, 184, 7i.202, 421 Toynbee, Paget, m,225, «.23G, n.241,
n.417, n.437, n.464 Tozer, H.F., w.476 Trepidation, 194, n. 232-3 "Tr^sor, Li Louvres dou," 218, 226,
243 Trigonometry', spherical, 113, 123;
153, 183; invention of, 133 Trivium and Quadrivium, 177, 261,
312 Twins, see also Gemini, 279, 400 Tycho Brahe, 120
Ulysses, 51, 52, 292, 335, 340, 370,
395 Universe {see Cosmogonies), 97;
dimensions, 390, 459; of Dante,
257, 258, 353 et seq., 489 Universities, Bologna, 199, 216, 226,
227, 241, 478; mediaeval, 199 ct
seq.; Naples 240; Padua, 227;
Paris, 199, 213, 228, 241; Oxford,
199, 213; Rome, 241 Ur, 37
Urban IV. 201
Ursa, Major, {see also Bear, and Wain), 234, 295 et seq,, 322, 368,, Minor, 234, 297, n.299
Varaha Mihira, 71.III Vega, 155, 187 Venturi, 453
Venus, 3, 15, 17, 23, 69, 80, 90, 93, 109, 112, 121, 144, 150, 169, 279, 281, 286, 300, 307, 309, 314, 373, 389, n.399, 406-11, 418-25, 481-66,, dimensions, 488,, distance, 458 et seq, „ goddess of, 38
,, movements of, 314, 315, 435, 477,, movers of, 483,, phases of, 492 „ period of, 314, 315, 436 „ and astrology, 173, 189, 472, 477,, as evening star, 52, 142,, as morning star, 15, 52, 64, 68, 142
Verona, 226, 256, 444 Vesners, 219, 318 Villani, 213, 223, 226, 319i Virgil, 167, 168, 239, 271, 328, 374, 381, 441,, quoted, 173, 279,, works of, 238 „ as guide, 286, 354, 367, 371, 387,
409, 481 „ and sun, 271, 333, 381, 392 Virgin, Virgo, 12, 32, 124, 141, 144,
290, 384, 418 Vision, date of Dante's, 357, 407 et
seq.; duration of 354-7, 401 'Vita Nuova,' 253, 257, 41*1, 432
Wain, The [see also Bear), 293, 295,
359, 368, 373 Wellhausen, n.39 Wicksteed, P. H., n.277, 306, 447 World-soul, 98, 159
Xenophanes, 98
Yaou, Emperor, 29, Canon of, 38 Year, 253; definition of, 23
,, Arab, 39; Babylonian, 40, 128, 161; Chinese, 38; Egyptian, 39, 45; Hebrew, 39; Greek, 161, 162, n.172; Mahomedan, 39; Persian, 313; Roman, 170; Sumex-ian, 38
,, civil, 22; luni-solar, 38, 39, 93; lunar, 39; sidereal, 22, 128; solar, 22, 56, 128, 163; tropical, 22, 129, 161, 162, 171, 193, 274, 275
,, leap, 171, 276
,, length of, 187, 274
,, and Hipparchus, 128, 135
ZiGGURAT, 37
Zodiac, 10, 13, 14, 15, 16, 18, 23, 28 30, 31, 43, n.43, 69, 119, 143, 185, 265, 272, 278, 280, 289, 300, 309, 311, 333, 349, 382, 384, 402, 405, 448, 476, 488,, age of, 34
,, Chinese and Hindvi, 29, 30,, constellations of, 31, 42, 43, 47, 129, 219, 248, 290, 356, 368, 402, 476,, lunar, 30 „ signs of, 129, 174, 185, 186, 245,
329, 356, 368, 379, 383, 402,, sun in, 276, 282 ■,, and months, 276, 281, 282 Zodiacal revolutions, 23 Zoroaster,
