Green, Christian symbolism of, 273 curative effects of, 28 gems in dreams, 357 significance of, 31, 226, 227 stones, therapeutic effect of, 370 worn in Siam for Thursday, 335 Green, Miss Belle Da Costa, vii Gregory II, 389 Grossularite, 47 Gyges, ring of, 7 Gypsum, 10, 79, 80 “lucky stones” of, 80 H _Han-yü_, or “mouth jade,” 86 Hardouin, Jean, 128 Harlequin-opal, 49 Hauffe, Frederike, 9 Hecate, image of, in amulet, 40 Hector, 30 Hei-tiki of New Zealand, 87-90 Helena, St., 286 Heliades, 55 Heliodor, 49 Heliotrope, 47 Helmont, Van, 389 Hematite, 6, 38, 80, 81, 122, 218, 227 Henrietta Maria, 262 Henry III of England, 44 Henry II of France, 166 Heuen Tsang, 238 Heraclius, 286 Hermes Trismegistus, 16, 381 Hiddenite, from North Carolina, 365 Hilda, St., Abbess of Whitby, 263 Hildegard, St., 70, 82, 389 “Hind Horn and Maid Rimnild,” ballad, 156, 157 Hirth, Dr. Frederick, vii “History of Jewels,” old gem-treatise, 17 Hoernes, Dr. Moriz, 55, 135 Höllenzwang of Dr. Faustus, 187 Homer’s Odyssey, amber necklace, 57 Iliad, use of red, 30 Horsey, Sir Jerome, 374 Horus, eye of, as scarab, 117 Hours of the day, gems of the, 337 Hudibras, 356 Human sacrifice, 3-5 Huntilite, 49 Hyacinth, see _jacinth_ Hyades, 343 Hyde, Major, 113 Hydrolite, from Oregon, 365 _Hydromantii_, 180 Hypersthene, 49 Hypnotism, 7, 8, 11, 33 I Iceland spar, 9 Idar, Germany, gem-cutting at, 54 Idocrase, 359 Images, natural, in stones, 266-269 Imperial Academy, Moscow, 142 Indersoen, Norway, amber from, 57 Indicolite, 360 Initials of names figured by precious stones, 47-50 Iolite, 359 Iris, 124, 130, 132, 226, 234 image signifying blood of, 120 stone, 133 Isaiah, 305 Ishtar, jewels of, 231 Isidorus of Seville, 59 Israel, twelve tribes of, 276, 278, 282, 288, 289, 305, 314 Issachar, 289, 294 Italian MS., 14th cent., 70, 77, 134 Ivan the Terrible and his curative stones, 374, 375 Ivory, 37 J Jacinth (hyacinth), 29, 81-83, 234, 242, 243, 295, 296, 303, 305, 316, 319, 344, 349, 375 as symbol of St. Simon Zelotes, 313 electuary of, 372 gem of Jupiter, 348 of Mars, 348 to dissolve magic spells, 82 to induce sleep, 83 Jade, 68, 83-90, 122, 236, 248-254, 265, 294, 300 called, with other green stones, _chalchihuitl_ by Mexicans, 251 Chinese amulets of, 83, 84 Chinese vase of, described, 239, 240 derivation of name, 383 form of Chinese character for, 83 _hei-tikis_ of New Zealand, 87-90 large mass of, from Jordansmühl, Silesia, 250 objects of in Chinese emperor’s collection, 245 of New Zealand, 382 talismans of, among Mohammedans, 246 therapeutic use of, 239, 381-384 where found in New and Old World, 249-251 adze, known as the “Kunz Adze,” 248, 249, 252