542 



INDEX 



Appendicularia, 323. 



Appendix vermiformis, 139. 



Aptera (Protura), 267. 



Apteryx, 385. 



Arachnida, 182, 202, 255, 261-262. 



Arachnoidea, 259-263. 



Archseopteryx, 379, 380. 



Archeozoic Era, 148. 



Archiannelida, 237. 



Archiptera, 35, 269-270. 



Arctic and Antarctic Regions, 467- 

 471. 



Arctic-alpine Life Zone, 456. 



Areas, 459-461. 



Arid Transition Area, 459. 



Aristotle, 219; A.'s lantern, 219. 



Armadillo, 38, 409. 



Artemisia, 459. 



Arthropoda, 180, 182, 191, 202, 218, 

 237, 238, 243, 253-279, 472; see 

 Arachnoidea ; Chilopoda ; Crus- 

 tacea; Diplopoda; Insecta; 

 Myriapoda ; Prototracheata. 



Artiodactyla, 410, 416. 



Ascaris, 234. 



Ascidians (Tunicata), 321, 322, 323. 



Aspidiotus perniciosus, 310. 



Asteroidea, 218, 222. 



Asterozoa, 221, 222. 



Atom, 6, 14, 37, 46; complexity of, 

 6; determiner of heredity, 46; 

 in protoplasm, 14; individuality 

 of life in, 37; instability of, in 

 protoplasm, 6; stability of, in 

 water, 6. 



Auchenia pacos, 413. 



Audubon, 521-522. 



Aulacaspis rosse, 79. 



Auricles, 338, 340. 



Austral Life Zones, 460-461. 



Australian Region, 448, 452. 



Austro-riparian Area, 459, 461. 



Aves, 182, 340, 341, 373-395- 



Axis axis, 412. 



Babesia, 206. 



Bacteria, 26-27, 3*, 126, 131, 134, 



H9, 338, 464, 483, 485, 490, 49i; 



anaerobic, 3 1 ; bacillus, 278, 486. 



Baird, S. F., 520-529; early life, 

 520-521; teacher, 523; appoint- 

 ment to Smithsonian, 523; merg- 

 ing Smithsonian into U. S. Na- 

 tional Museum, 524-528; founding 

 Wood's Hole Biological Labora- 

 tory, 528; death, 529. 



Baker, F. C., 252. 



Balanoglossus, 321, 324. 



Barnacles (Cirripedia), no, 218. 



Barramunda (Neoceratodus), 344, 



345- 



Barrell, Joseph, 148, 156. 

 Bates, H. W., 290, 291, 292. 

 Batesian mimicry, 291. 

 Bateson, 49. 



Batrachia Salientia, 361. 

 Bears (Ursidae), 402. 

 Beaujeu, Quinqueran de, 308. 

 Beccari, 464. 

 Beddard, F. E., 241. 

 Bee (Apoidea), 293-298; adaptation, 



294; comb, 296; fossils, 293; 



functions, 295-296; habits, 294- 



295 ; structure, 297-298. 



Beebe, C. W., 374, 395- - 



Beetle (Coleoptera), 276. 



Benthos, 476, 477. 



Bergson, 12. 



Binney, W. G., 252. 



Biologia Centrali-Americana, 466. 



Biology: history, 492-499; life- 

 regions, 447-453; sociology, 530- 

 534; study's results, 535-537- 



Biot, J. J, 480, 483. 



Biota, 446; circumpolar, 450. 



Birds (Aves), 182, 340, 341, 373~395 5 

 anatomy, 377; feathers, 374, 377; 

 moulting, 376; senses, 378; see 

 Anseriformes ; Apterygiformes ; 

 Casuariiformes ; Charadriiformes ; 

 Ciconiiformes ; Colymbiformes ; 

 Coraliiformes ; Cuculiformes ; 



Falconiformes ; Galliformes ; Grui- 

 formes; Passeriformes ; Proellarii- 

 formes ; Rheiformes ; Spenisci- 

 formes ; Struthioniformes. 



Bisexual reproduction, 75 ; see also 

 Generation. 



