Blue Gum Trees, xiii, 26, 94, 350; leaves of, 106; swamp draining by, xiv, 379 (see also Eucalyptus) Blue Ridge Mountains, metamorphism in, xiv, 234 Bluffs, formation of, xiv, 84 Blunderbuss, v, 361 Boa Constrictor, xii, 215 Boas, family of, xii, 213, 215-16 Boats, evolution of, xv, 261-3; propulsion of, 265 Bobcats, xii, 364-5 Bode's Law, ii, 254-5 Bodies, of matter, defined, iv, 12, 381 Body, anatomy and physiology of, ix; care of against fatigue, xi, 279-80; care of, instruction in, x, 282-5; changes in, untransmitted, ix, 326; chemical composition, viii, 348, 349, 353, 354-5; construction features and units, ix, 12, 13; dissection of, x, 30, 41-2, 45, 81; efficiency of, viii, 367, ix, 306, x, 238-9; electrical conductivity, iv, 259; electricity effects, vii, 246-9, xi, 117; emergency responses of, ix, 166-7, 171-2, 209, 220, 221, 293; exercise effects, x, 303-4; fatigue conditions, xi, 270-4; fatigue results on resistance, x, 248; food needs and utilization, (see Food); functional disorders, x, 318-65; functional regulation, 346-7, 352-3; functions, chemical explanation of, xvi, 142; functions, close connection of, xi, 31; growth of (see Growth); hair on, xv, 38; hardening processes, x, 240; infection portals, 198, 201-2; kinetic system, xi, 57, 60-1; living and nonliving parts, ix, 12, 13, 31; machine parts suggested by, v, 20; mechanisms of, 248; metabolism (see Metabolism); mind and, relations, xi, 13, 14, 61, 369-75; motions, different kinds, ix, 82-3; mutilations among savages, xv, 257-60; painting of, 255-6; poisonous effluvia of, ix, 269-70; positions of, in relation to health, x, 241-2 (see also Postures); pressures, xi, 53; pressure of atmosphere on, i, 23; proper clothing of, x, 306-10; regulation to environment, 249-51; reproduction from cells, ix, 324-5, 332-3; resistance to disease germs, 177-9, 185-6, x, 203-12, 240, 248, 289, 292; salt requirements, ix, 174; seat of life in, 11, 12, 17; shame of, xv, 254-5; temperature, v, 348-9, ix, 306-7, 312, x, 250-1, 306; temperature after hard work, ix, 317; temperature equality, advantages of, 78-9; temperature in different scales, iv, 137 (fig.); temperature in fever, ix, 317-19; temperature regulation, i, 316-17, 320-1, 322, v, 348-9, viii, 331, ix, 169, 305-23, x, 310; temperature rise from excitement, xi, 140; temperature rise in dense atmosphere, iv, 31; tissues (see Tissues); unstable chemical organization, xi, 134; wastage and repair of, ix, 278-86; waste elimination in tropics and cold climates, xv, 49, 50; water functions in, viii, 355-6, wonders of, vi, 272; X-ray effects, vii, 250 (see also particular parts and functions)