Brain, ix, 131, 144-7, xi, 15-32, 60; areas for different functions, xv, 89-90; as seat of life, ix, 11, 14, 17; association fibers, xi, 200; association region of, ix, 151; auditory area, xi, 108; blood supply of, ix, 197, 216-17; cells of, 14; changes caused by shock xi, 59; condition of, at birth, ix, 351; connections in nervous system, 142-4, 147-51; convolutions of, xv, 62-3; delayed nervous impulses in, ix, 140, 141-2, 145, 146-7; diseases, results of, 146; emotional processes in, 154, 200; gray matter of, xv, 63; in dreams, xi, 301; in sleep, ix, 218, xi, 285, 286, 287, 289; inflammation of, cause, x, 224; insensitive to pain, xi, 118; intellectual processes, ix, 147-53, 154; magnetism effects, vii, 247; mental incapacity from defects, xi, 13; motor area, ix, 147; of insects, xii, 103; of men and lower animals, compared, xv, 62-3, 96; of primitive men, iii, 302-3, 304, xv, 89-91, 96; various animals of past, iii, 289, 290, 292, 298, 299; overuse effects, xi, 288-9; protection of, in infants ix, 345; Sherrington on, xi, 12; skull capacity in relation to, xv, 41; stomach and, relations, xi, 370; storehouse of past environment, 58; tissues unaffected in starvation, ix, 298; visual area, xi, 96-7; waste of energy of, 377; weight in man and apes, xv, 62; weight in various men and races, 39-41; wounds of, early treatment, x, 55, 56 (see also Brain Stem, Cerebellum, Cerebrum) Brain Case, ix, 61; face and, xv, 43, 62 Brain Power, development of, in man, xv, 190-1; racial expressions and, 39, 63-4 Brain Stem, ix, 144-5, 146 (fig.); vital process centers of, 167-9, 257, 315 Brain Work, energy consumed by, viii, 367; fatigue from, ix, 138, x, 247 Brain Workers, ailments, xi, 371; attractive foods for, ix, 242; exercise needs, x, 304 Brakes, air (see Air Brakes); electromagnetic, vi, 92, 94; friction, iv, 93-4; regenerative, vii, 200 Bramah, Joseph, hydraulic press, v, 98-9, 376; planer, 377 Bran, in diet, x, vitamines in, 261, 266 Branches of Trees, as leaves, xiii, 378, 379; why clear of ground, 86 Brandes, H. W., i, 215 Brasher, Philip, v, 124-5 Brass, alloy of copper, viii, 156, 164, 273; electrical conductivity, iv, 283; electric welding of, 312; expansion and contraction of, 145-6, v, 72 Brave West Winds, i, 128, 368