Canyons, depth dependent on altitude, xiv, 159; occurrence in dry climates, 51-2 (see also particular canyons under river names) Caoutchouc, xiii, 245; chemistry and manufacture, viii, 257-8 (see Rubber) Capacity, electrical, iv, 267-8, viii, 363; in overhead transmission, 104, 105; in oscillating circuits, 286-7, 289; measurement in oscillating circuits, 294-5, 296-7; unit of, iv, 284, vii, 368 Cape Nome, Alaska, iii, 57 Capella, binary star, ii, 123; color, 297; solar star, 115 Cape of Good Hope, climate of, xiv, 358; discovery of, 309 Cape Town, oak trees at, xiv, 370 Cape Verde Islands, xiv, 252, 289; ocean deeps around, 289 Capillaries, ix, 54, 192-5; in circulatory system, x, 63, 334; oxygen diffusion through, ix, 260; passage of blood through, 210, 212, 214, 215; unknown to Galen & Harvey, x, 63 Capillarity, of soil water, viii, 37, xiii, 92-3 Capri, level changes at, iii, 81 Caproic Acid, viii, 220 Capsules, plant, xiii, 56, 69 Capuchin Monkeys, xii, 377-8 Capybaras, xii, 289 Caracels, xii, 356 Caraway Seed, xiii, 201, 265 Carbohydrate Industries, viii, 241-4 Carbohydrates, viii, 223-9, 374-5; body fuels, xi, 271, 278; daily consumption, viii, 366-7; digestion and utilization of, 356, 357, 358-9; food requirements and values, 361, 362, x, 268, 269, 271; formation by plants, viii, 219, 335, 349, 350, xiii, 81; storing of, in body, x, 272; structure and hydrolysis, viii, 217-18; use of by animals and vegetables, 246, 348, 349, 350 Carbolic Acid, viii, 238, 253, 333; as antiseptic, x, 145 Carbon, viii, 18, 42-52; affinity for oxygen, 12, 102; atomic weight and symbol, 383; chemical energy, 186-7; colors due to, 258; combustion of, 12-13, 308, ix, 26, 190; diamonds and graphite pure, iii, 328, 331, viii, 42, 43; electrical conductivity, iv, 283; electric positiveness, vi, 59, 61; ignition of, viii, 53; in body, elimination, 353; loss in fatigue, xi, 271; in hydrocarbons, viii, 205-7, 233, 234; in iron, v, 316-17, 319, 320-1, viii, 157, 158; in iron preparation, 157; in neutral refractories, vii, 307; in organic matter, viii, 42, 64, 204, 336-7; in proteins, 351; in steel, 159, 160; luminosity of flame due to, 59-60; melting point, iv, 162; necessity of, to life, ii, 242-3; percentages in coal series, iii, 345; plant uses of, viii, 49, 340-1, xiii, 14, 80, xiv, 64-5; potential energy in, iv, 82; production of pure, xvi, 190 Carbonaceous Matter, in soils, viii, 340 Carbonaceous Strata, iii, 249-50 Carbonated Beverages, viii, 43, 50 Carbonated Waters, natural, xiv, 142, 146 Carbonate Group, viii, 93