3o8 



INDEX 



Anliarchi, 165-167 (Fig.) 



Antibodies, 73, 74 



Antillia, 206 



Antilocapra, 266 



Antitoxin, 73, 74 



Anura, 178 



Apatosaurus, 213 (Fig.), 219, 220 (Fig.), 221 



Apes, 236, 237, 269, 274 



Aphroditidae, 128, 129 



Appalachian, 135, 136, 164, 181, 188, 256 



Apus lucasanus, 124 (Fig.) 



Arabella opalina, 128 (Fig.) 



Arachnida, 125, 166; see Arachnids 



Arachnids, 130; see Arachnida 



ArcBoscelis, 186 (Fig.) 



Archaean, 50, 100, 153, 256 



Archasoceti, 241 



ArchcBopteryx, 227, 228-230 (Figs.), 292 



Archaeozoic, 34, 50, 82, 95, 153 



Archegosaurus, 182 



Archelon, 203 (Fig.), 206 



Arctic Ocean, 206 



Arctic seas, 134, 205 



Argentina, 217 



Argon, 41 



Arid, 185, 197 



Aridity, 107, 135, 180, 254, 258 



Aristotle, 8, 9, 279 



Armadillo, 148, 224, 259 



Armature, 121, 132, 153, 154, 161, 164-166, 

 169, 179, 182, 187, 202, 203, 224, 225, 246 



Arrhenius, Svante A., 49, 54 



Arsenic, 54 



Arthrodira, 166, 167 (Fig.), 292; see Ar- 

 throdiran fishes, Arthrodires 



Arthrodiran fishes, 172, 175; see Arthro- 

 dira, Arthrodires 



Arthrodires, 134, 168-170; see Arthrodira, 

 Arthrodiran fishes 



Arthropoda, 118, 130, 291; see Arthropods 



Arthropods, 124; see Arthropoda 



Articulates, 130, 132, 133 



Ascidians, 162, 168, 292 



Asia, 82, 237, 256, 261, 269, 274 



Aspidosaurus, 182 



Atmosphere, 9, 26, 28, ^^, 34, 37, 39-42, 

 43-45, 52, 68, 86, 87, 99, 106, 255; see 

 Air, Carbon dioxide, Volcanoes 



Atomic weight, 34, 55, 59, 67 



Atoms, 39, 54, 56, 59, 60, 97, 98, 117 



Australia, 180, 203, 237, 255, 262 



Aye-aye, 150 



Azotobacter, 86, 87 



B 



Baboons, 239 



Bacon, Francis, 12, 283 



Bacteria, 23, 31-33, 37, 38, 40, 42, 45, 48- 

 51, 67, 80-93 (Fig.), 99, loi, 105, no, 

 III, 143, 253, 254, 286; see Monads; 

 aerobic, 87; ammonifying, 84; anaerobic, 

 40, 42, 87, 89; anticjuity of, 84, 85; cal- 

 careous, 104; denitrifying, 85, 86, 91, 104; 

 iron, 90, 118; luminous, 91; nitrifying, 

 37, 62, 82-86, no; parasitic, 89; proto- 

 trophic, 81; size of, 81; sulphur, 83, 90; 

 symbiotic relations of, 82, 87, 89 



Bacterium calcis, 90; B. radicieola, 87 



Bahama Banks, Great, 90 



Bain, Andrew Geddes, 189 



Balcenoptcra borcaUs, 234 (Fig.) 



Balance, 16, 17, 91, 149, 233, 269, 280 



Baldwin, J. Mark, 244 



Baltic Sea, 188 



Baptonodon, 205 (Fig.) 



Barathromis diaphanus, 173 (Fig.), 174 

 (Fig.) 



Barbados, 115 



Barium, 2,?,, 34, 36, 54, 66 



Barnacles, 113, 134, 291 



Barrell, Joseph, 62, 136, 213 



Barus, Carl, 27 



Bateson, William, 7, 145 



Bats, 236, 239, 259, 292 



Bears, polar, 239 



Beaver, 239 



Bechhold, Heinrich, 68 



Becker, George F., 26, 35, 36, 40 



Becquerel, Antoine Henri, 11 



Beebe, C. William, 228 



Belgium, 222 



Bcliina danai, 121 



Bergson, Henri, 10 



Bernissart, 222 



Bert, Paul, in 



Berthold, 77 



Berzelius, Jons Jakob, 57, 286, 287 



Beyjerinck, 83 



Bicarbonates, 42, 59 



Bighorn Mountains, 160 



Big Tree, 96 



Bion, 6 



Birds, 67, 131, 161, 211, 226-231, 232, 247, 

 275, 292; aquatic, 230, 231; relation of 

 plants to, 105; toothed, 227, 230, 292 



Birkenia, 165 



Bison, 225 



