Evaporimeter (see Aumometers) Everglades, Florida, draining of, v, 255 Evergreen Trees, deciduous, xiv, 370, 371; in landscape gardening, xiii, 269, 270, 271 (See also Conifers) Evesham Experiments, vii, 352 Evil Spirits, savage belief in, xv, 234, 304-5, 336, 339-40, 348, 352 Evolution, animals the main proof of, iii, 259, 260; Buffon on, xvi, 139-40; climatic, iii, 174; Darwinian theory, x, 135, 136, xvi, 149-52; Greek theories, 78-9, 139; human, xv, 26-31, xvi, 47; laws of, xv, 15-25, 381-2; laws and goal of, xiii, 325-36; Le Conte on, iii, 164; social, xv, 29-31, 382, 383-4; universality of, ii, 366, xv, 29, xvi, 152; Wolff's theory, xvi, 118 Exaggeration of Parts, iii, 277 Excavating, air pressures in, v, 120; through quicksands, 115-18, 123; under river-beds, 121-4; with water jets, 88 Excavating Machinery, v, 252-9; for swampy ground, 216 Excitement, blood changes in, ix, 293, xi, 137, 138; insomnia from, ix, 219; pain and, xi, 119; recovery period, 21 Exclusive Inheritance, x, 230-1 Exercise, effects, needs and rules, x, 303-6; effects on breathing, ix, 256, 258; effects on heart rate, 168-9, 207, 208-9, 261-2, x, 334; effect on lymphatics, ix, 223; effects on sweat glands, 169, 315-16; for constipation, 251, x, 317; heat produced by, 270, 306; obesity and, 273-4, 275; oxygen consumption in, ix, 261; psychological importance, xi, 339, 371-2; pulse rate after, x, 334; tuberculosis preventative, 292; violent, albuminuria from, 345 Exfoliation, iii, 24, 378 Exhaust, of engines, v, 164-5 Exhaust Fans, vii, 86 Exhaustion, kinetic theory, xi, 59-60; mental and physical, 135-6; nervous system in, 274; pain in, 119; unlike sleep, 286 Exoskeleton, xii, 127 Expansion, by heat, iv, 134-5, 138, 140, 145, 151, v, 71, viii, 25, 107; coefficient of, iv, 145; cooling by, i, 30, 90, iv, 188, 191-2, vii, 323, viii, 68; of fused quartz, vii, 311-12; of water and other substances on solidifying, iv, 149-51, viii, 38 Experience, ability to profit by, ix, 139-40, 152-3; accumulation and results, xi, 33; contradictions of, 11; learning and, viii, 269; learning by, in man and animals, xv, 66; psychology science of, xi, 10-11; sensations as, 68; subconscious storing of, 47; Sylvius's test of truth, x, 69 Explanations, slower than events, xi, 210 Exploration Drilling, v, 262-5 Exploratory Laparotomy, x, 147 Explosions, boiler (see Boiler Explosions); cause of detonations, vii, 211; chemical and physical processes, viii, 61-3; dust, i, 63; gunpowder, viii, 62, 145; hydrogen in air, 33, 36, 62; speed of sound in, i, 187