Century Plants, single flowering, xiii, 43, 53; sisal from, 240-1; water-storage by, 41 Cephalopods, iii, 20, 260, 273-6, xii, 58, 74-80 Ceraunographs, i, 163, 368 Cereal Dusts, i, 63 Cereals, best grown in grasslands, xiii, 373; evolution, iii, 257; food value, viii, 364; fruits for seed dispersal, xiii, 56, 182; phosphate requirements, xiv, 67; vitamines in, x, 260, 262 Cerebellum, ix, 144 (fig.), 145, 146 (fig.), xi, 28, 31; locomotion control through, ix, 156, 158, 167 Cerebrospinal Fluid, xi, 29 Cerebrospinal Meningitis, antiserum treatment, x, 218; germ of, 216 Cerebrum, ix, 144, 145-7, xi, 28, 29, 31-2; at birth, ix, 351; auditory area, xi, 108; locomotion action of, ix, 157, 158; seat of thought processes, 167; visual area, xi, 86 Ceres (planet), discovery, ii, 255 Cerium, atomic weight and symbol, viii, 383 Ceylon, animals of, xii, 201, 302, 328; chocolate production, xiii, 234; cinnamon production, 263, 264; coco palm of, xv, 125; leeches of, xii, 56; pearl fisheries of, 62; polyandry in, xv, 286; quinine production, xiii, 251; tea cultivation, 228, 224 (illus.) Chagres River, xiv, 195 Chahas, xii, 256-7 Chain Pump, iv, 26 Chain Reflex, xi, 39; in habit formation, 250-1 Chain Structure, viii, 233, 375 Chalcedony, iii, 337 Chalcocite, iii, 326, 360, 361 Chalcopyrite, iii, 326, 360, 361 Chaldean Eclipse Cycle (see Saros) Chaldeans, astronomy of, ii, 9, xvi, 57, 58 Chalk, iii, 377; deposits of, 216-18, 266 "Challenger," voyages of, xiv, 283, xvi, 142 Chambered Nautilus, iii, 273-5, xii, 76, 77 (fig.) Chamberlens, obstetricians, x, 79-80 Chameleons, xii, 204, 207-8, 208-10 Chamois, xii, 325 Champlain, Lake, formation, iii, 155 Champlain Sea, iii, 150, 151 Change, Albanian story of, v, 251; attention attracted by, xi, 229, 344; Cardinal Newman on, xiii, 325-6; Heraclitus on, xvi, 79; in earth's features, xiv, 28-30; need of outside influence, viii, 113; physical and chemical, 14-15 Channels, aerial mapping, i, 47; dredging of, v, 257-8 Chaparral, xiv, 379 Characters, Characteristics, inheritance laws, ix, 333-8, x, 230-2, 233-4, xiii, 332, xvi, 154, 156, 157-8; inherited and environmental, x, 228-9; racial, xv, 36-52 (see also Acquired Characters, Heredity) Charades, xv, 169 Charcoal, viii, 44; combustion of, 12-13; glow of burning, 57; heat from, 186; heat resistance, vii, 308; in gas masks, viii, 47-8, 263, 264; in gunpowder, 145 Charcot, Jean Martin, x, 360, xvi, 184