Black (color), absorption of light by, iv, 364, x, 309; produced by interference of lights, iv, 377-8; sensation of, ix, 115
Black, Joseph, chemical work, xvi, 119-20, 125, 177; discovery of respiration physiology, x, 88-9
Blackberry, aggregate fruit, xiii, 55; in rose family, 197; origin, 224; running, 28
Black Forest, Germany, xiv, 238-9; geology of, 87 (map), 90, 117, 128
Black Hills, xiv, 93, 227; core of, 111; former forests of, 373; mineral springs of, 145
Black Hole of Calcutta, i, 321, ix, 268, x, 238
Black Lead, iii, 331, viii, 43 (see Graphite)
Black Race, xv, 32; brain and skull capacity, 41; disease immunity and susceptibility, 48-9, 50-1; facial angle in, 45; fitted to tropics, 50; jaw angle, 44; nose index and nostril shape, 46; peoples, 37; separate origin theory, 69, 70; skull shape, 42; type characters of, 35
Black Sea, hanging valleys on shore of, xiv, 58; importance of ports, 267; salinity of, 296, viii, 139; sturgeons of, xii, 152
Blanc, Mount, observatory on, ii, 142-9; "resurrection," i, 168; sound intensity on, 186
Blast Furnaces, v, 317-18; air blast of, viii, 158; ancient Egyptian, xvi, 74; carbon uses, viii, 157; cooling of air for, v, 347; development of modern, 315-16, xvi, 174, 175, 176; oxygen in, i, 33; potash from dust, viii, 279
Blasting, v, 261-2; explosives for, viii, 260; with compressed air, i, 27; with water, v, 100
Bleaching, chemistry of, viii, 86; chlorine, 85-6; hydrogen peroxide, 41, 86; ozone, vii, 354; sulphur dioxide, viii, 78, 146; of wool, 256
Bleaching Powder, viii, 86-7, 146, 153, 274
Bleeders, Bleeding Sickness, ix, 181; transmission of, x, 234
Bleeding, from arteries and veins, x, 39; leeches used for, xii, 55; stopping of, ix, 179-81
Blended Inheritance, ix, 334, x, 230-1; in animal and plant breeding, ix, 337
Blind, optophone reading for, v, 332, 334-5, 384; space perception by, xi, 168-9
Blindness, black seen in, ix, 116; cause, xi, 96-7; from brain disease, ix, 146; from cataract, 112
Blizzards, i, 133-4, 368; device against, 345
Block Mountains, iii, 138-9, xiv, 117, 226
Blood, absorption of digested food by, ix, 226, 243-6; adrenalin effects, 171-2, xi, 137-8; aeration of, by lungs, x, 62, 331; amount in circulation, 337; anemia, 337; arterial, ix, 260, 263, 264; carbon dioxide in, 190, 262-3; effects, 264-7, x, 339; carbon monoxide effects, viii, 50-1; circulation of (see Circulation of the Blood); clotting of, ix, 180, x, 88, 337; coagulation after emotion, xi, 138-9; coloring matter related to Chlorophyll, xii, 14; color of, in relation to oxygen, ix, 259-61; composition, 173-90; control of vital processes by changes in, 168-72; conveyer system, 191, 225; corpuscle-forming tissues, growth of, 287; distribution efficiency, x, 238-9; emergency emotion effects, ix, 166, 171, 293, xi, 136-7; fats in, ix, 289; flow, how controlled, 215-16, 219-21; functions, summarized, 50-1, x, 331-7; germ destruction by white corpuscles, 197, 209-11; in embryo, ix, 343; interchange with tissue, fluids, 51 (fig.), 191, 193-5, 221-2; iron and salts in, uses, viii, 354; liver action on, x, 329; maternal influences through, ix, 343-4; mountain-sickness effects, i, 328; neutrality or alkalinity of, x, 280-1; oxygen supply and transportation, ix, 182-3, 198-9, 253-62, x, 338-9; platelets of, ix, 188-9; proteins of, 176-7, 194-5, 262-3; rate of passage through heart, 210, 211, 212; red corpuscles, 181-4 (see Red Corpuscles); renewal of, 173; sensations, effect on, xi, 68; sleep effects, 283-5, 289; soul in, Greek idea of, xv, 330; sugar in, regulation and excess, ix, 290-3, x, 329, 330; sugar increase in excitement, xi, 138; temperature, v, 348-9; temperature rise, effects, ix, 169, 315-16; transfusion of, x, 337-8; venous, ix, 263-4; waste removal by and from, 271-6; water absorption and supply, 247; white corpuscles, 182 (fig.), 184-8 (see also White Corpuscles)