Hexane, viii, 206, 224 Heyl, Henry, v, 330 Hi and Ho, Chinese astronomers, xvi, 56-7, ii, 22 Hicetas, Greek astronomer, xvi, 81, 102 Hickory Trees, in American forests, xiv, 373; in apetalae group, xiii, 190; family, 191; fertilization, 148; leaves, 36-7; leaf-bud protection, 34; roots, 17; sexes in, 46, 191 Hides, drying and tanning of, viii, 257 Hieroglyphics, Egyptian, xv, 172-4 High Blood Pressure, ix, 214, x, 334-6, 340 Highbrow, xv, 43 High Cost of Living, results in disease, x, 268 High Frequency Circuits, vii, 263 High Frequency Generators, vii, 290-1 Highlands, and lowlands, xiv, 213 Highlands-of-the-Hudson, iii, 188, 189 Highs, High Pressure Areas, i, 135-6, 137, 374; movements, 134-5, 237; weather significance, 236, 237; winds in relation to, 125 (see also Pressure Areas) Hill, James J., quoted, xi, 377 Hill, Prof. Leonard, i, 319, 320, 321, 322 Himalayas, animals of, xii, 288, 322, 325, 330, 337, 357; forming of, iii, 236, xiii, 319; glacial erosion in, xiv, 233; height and importance, xv, 137; impressiveness of, xiv, 9; rainfall, i, 111; rainfall on opposite sides, xiv, 355; rhododendrons and azaleas in, xiii, 202; rivers of, xiv, 167; site formerly submerged, iii, 235; sky line from Tibet, xiv, 234; snow pinnacles, i, 117; youthfulness, xiv, 96, 235 Hinds, xii, 317 Hindu Language, words from, xv, 161 Hindus, animal worship of, xv, 334; astronomy, ii, 21, 26; belief concerning trances, ix, 11, 17, 266-7; cloud classifying by ancient, i, 97; conception of earth, ii, 36; crocodile veneration by, xii, 201; geometry of, xi, 239; in brown race, xv, 37; marriage ceremonies of, 292, 293; medicine and surgery of, x, 13-14, 57, 100, 123; monkeys revered by, xii, 379 Hip Joint, dislocation of, ix, 67, 71 Hipparchus, ii, 10, 30-2, xvi, 90-1; data gathered by, 94; discoverer of precession, ii, 70; novae observed by, 331; star catalogue of, 300 Hippocrates, x, 18-22, 97, xvi, 95-6, 106; aphorism of, x, 192, 379; description of diseases by, 17; humoral doctrine, 21, 98; influence in Middle Ages, 31-2, 34, 36, 37; "Oath" of, 18-19; references to teachings, 55, 78, 154, 244, 289; revival of teachings of, 44, 47, 48, 72, 73, 74 Hippopotamus, xii, 310; trapping of, xv, 225 Hiqua, xii, 74 His, Wilhelm, x, 131 Histology, defined, xiii, 75 History, beginnings of, xv, 322, xvi, 51; climatic influences, xiv, 29, 357-9, 361-2, xv, 123; crowds and individuals in, xi, 333; emotions in, 130; geographical influences, xiv, 10, 30-1, 191-7, 239-45, 249-50, 279-82, 305-11, xv, 122-3, 136-9; poetry and, 323-4; sentiments the moving force, xi, 150; suggestibility and records, 310; warriors and artisans in, v, 15 Hoang-ho, shifting of courses, xiv, 184