Jadeite, 247, 249-252, 300, 382 cross made from celt of, 264 objects of, at Perugia, 264 Jagganath, image of with eyes of precious stones, 240 James I of England, 155 Jamestown Exposition, 1907, vi Jâmi, lines in crystal mirror, 182 Jargoon, see _jacinth_ Jasper, 6, 38, 90, 91, 122, 133, 135, 226, 227, 229, 252, 265, 291, 294, 298, 300, 302, 303, 305, 313, 319, 372 as symbol of St. Peter, 311 gem of Libra, 346 green, engraved with zodiacal symbols, 342 in breastplate, 276 of King Nechepsus, 385 Jerome, St., 100, 307, 310 Jessen, Dr. Peter, vii Jet, 39, 91, 92 in burials of Pueblo Bonito, 92 in palæolithic remains, 91 of Whitby, 263, 264 John, St., 275, 303, 311 Jordansmühl, Silesia, largest mass of European jade found at, 250 Joseph, 288, 289, 295 Josephus, Flavius, 277, 278, 283, 285, 290, 291, 292, 294, 295, 296, 297, 301, 307, 309, 310 Juba, 66 Judah, 289, 293 Junot, Marshal, and the emerald, 262 Jupiter, god, 341 planet, 32, 33, 243, 336, 348, 353, 354, 355, 372 Justinian, 283 K Kaldoun, Ibn, 181 Kalpa Sutra, 238 Kazwini, Al, 74 Khusrau II, 284 King, Rev. C. W., 283, 342 Knopf, 253 Konrad of Megenberg, 17, 45, 141 Koran, 111, 275 Fourth Heaven of carbuncle in the, 61, 349 Korea, national emblem of, 265 Krishna, 241 Kunzite, 171, 323 L Labradorite, 360 Labrets, 252-254 Lane, E. W., experiments in crystal gazing, 205 Lang, Andrew, 180, 181, 210 Lapidaries, gods of, in ancient Mexico, 255 Lapidario, of Alfonso X, 63, 348, 376 of Marbodus (in French), 15 of Philippe de Valois, 102 of Sir John Mandeville, 71, 72, 103, 109 _Lapis Armenus_, 388 _Lapis crucifer_ (staurolite), 271 Lapis-lazuli, 36, 37, 38, 92, 93, 226, 227, 228, 229, 230, 245, 294, 319, 336 gem of Venus, 348 image of Ma (Truth) of, 119, 122, 229, 293 therapeutic effect of, 370, 388 _Lapis nephriticus_ (nephrite), 264 Laufer, Dr. Berthold, vii Leczinska, Marie, 320 _Leishmania tropica_, 149 Lenormant, François, 233 Leo, zodiacal sign, 29, 341, 346, 354 Leonardo, Camillo, 18, 51, 58, 132 Leopold I of Germany, 221 Lepidolite, 48 _Leshem_, stone of breastplate, 295, 296 Levi, 288, 289, 292 Leyden papyrus, praise of bloodstone in, 61 Libra, zodiacal sign, 212, 346, 354, 355 Life in precious stones, 5 Ligure, in breastplate, 276, 295, 319 “Lithica,” poem on gems, 51, 90, 94, 163, 178 Litteromancy, 16 Llewellyn, King of Wales, 44 Loadstone, 10, 81, 93-97, 134 court decision in regard to, 96 statue of Arsinoë to be held suspended by, 93 statue of Venus of, 94 symbolical names for, 95 used as charm by Alexander the Great, 96 where first found, 93 Lodge, Sir Oliver, 214, 215 Lorenzo del Escorial, San, monastery of, gems in, 263 Lorraine, northern, jet from, 92