Antares, angular diameter, ii, 151, 322-3; color, 297; former name, 302; gaseous state, 382; type III star, 115 Anteaters, xii, 281-3; banded, 274; scales of, xv, 220-1; spiny, xii, 272-3 Antecedent Rivers, xiv, 164-70, 174 Antelopes, xii, 326-8; fear in, xi, 136; hunting of, with cheetah, xii, 365; pronghorn, 322-3 Antennæ, of insects, xii, 100-1 Antennæ (wireless), iv, 314, vii, 261; construction, 264-5; effective resistance, 298; fundamental wave-lengths, 266, 294; of receiving stations, 267; types, 295-6 Antenna Circuit, vii, 263-7; energy dissipation, 297-8; inductance and capacitance, 294-5, 296-7; radiation, on what dependent, 298 Anthelion, i, 366; oblique arcs of, 378 Antheridia, xiii, 158, 159, 161 Anthers, of flowers, xiii, 45, 118, 119 Anthracene, viii, 240, 253 Anthracite Coal, iii, 344; beds in U. S., 347-8; constituents, 345, viii, 44; graphitic, iii, 345; lessening supply, 346; loss of heat with, v, 155 (see also Hard Coal) Anthrax, Koch's studies of, x, 149; Pasteur's work on, 140-2 Anthropoid Apes, xii, 381-4; primates, 373; susceptibility to human diseases, x, 206 ANTHROPOLOGY, Volume xv, defined, xv, 10, 11, 15, xvi, 36, 47; daily interest, 26, 29 Antibodies, x, 205, 216 Anticathode, defined, iv, 381 Antichlor, viii, 140 Anticline, defined, iii, 377; illustrated, 85, 128 (Plate 7), xiv, 95 Anticrepuscular Rays, i, 169, 366 Anticyclones, i, 134-5, 366, xiv, 349, 350; Siberian, i, 218 Antigens, x, 205, 217 Antimony, affinity strength, viii, 128; atomic weight and symbol, 383; expansion on solidifying, iv, 150; fusibility, viii, 384; ores, 198, 270; specific gravity, 384; tests, 287-8; uses in industry, 169; use of, in medicine, x, 12, 50, 169 Antinodal Current, vii, 297 Antinori, Luigi, i, 213 Antiseptics, viii, 332-3; Carrel-Dakin solutions, x, 181-3, 382; discovery, 40, 145-6, xvi, 180, 182-3 Antiseptic Surgery, x, 146-7; history of development of, 40, 55, 145-6, 381-2, xvi, 108, 114, 182-4; in World War, x, 181-3, 381-2 Antitoxins, x, 218, 296-8; of diphtheria, 197, 212, 213-14, 218, 296-8; of tetanus, 218, 299 Antitrade Winds, i, 366, xiv, 348 Anti-twilight Arch, i, 167, 366 Antlers, xii, 316, 317, 319 Ant Lions, xii, 106 Antony, Mark, speech on Cæsar, xi, 331 Ants, aphids of, xii, 101; appearance in Triassic, 104; nest repairing by larvæ, v, 10; numbers in tropics, xii, 282; "showers" of, i, 357; social habits, xii, 124, 125, 126; underground rooms of, xv, 266 Antwerp bombardment, audibility, i, 191; harbor of, xiv, 270 Antyllus, x, 28 Anuria, x, 344-5 Aorta, ix, 196, 201 (fig.), x, 334; elasticity of, ix, 210; ligation of, x, 129-30 Aoudad, xii, 326 Apatite, iii, 323, viii, 193