INDEX 



Abundance of individuals, 7 ; 



of life, 104 

 Abyssal fauna, 81 

 Acacias, experiments with, 160 

 Acorn-shells, 448 

 Acquired characters, transmissi- 



bility of, 595 

 Adaptations, 509 ; Darwinian 

 theory of, 515 ; Lamarckian 

 theory of, 615 ; in deep sea, 90 ; 

 of freshwater animals, 107 ; 

 functional, 530 ; illustrations 

 of, 518 ; limitations of, 128 ; 

 nature of, 514 ; origin of, 515 ; 

 spoiling, 279-280 ; of terrestrial 

 animak, 120 

 Aerial fauna, 123 

 Agar, Dr. W. E., 149, 596-601 

 Agassiz, Alexander, 82 

 Alcook, Prof., 158, 289 

 Alpine swifts, 142 

 Ambrosia, 282 



Amphibians, importance of, 118 

 Anableps, 528 

 Anaphylaxis, 502 

 Anderson, Capt. A. R. S., 20 

 Andrews, Dr., 156 

 Animal behaviour, 187, 628 

 Animal society, criteria of, 345 

 Animate, the, 624 

 Antarctic nematodes, 96 ; shore 



fauna, 142 

 Ant-hiU, 326 



Ants and Aphides, 1 7 ; and plants, 

 285-287 ; and seeds, 272 ; har- 

 vesting, 349 

 Aquatic insects, 451 

 Arboreal animals, 125 

 Archer or spitting fish, 14 

 Arctic tern, 165 

 Argjrroneta, 115 



' Aristotle's Lantern,' 524 

 Arthus, M., 503 

 Association, 242 

 Audacity of Life, 148 

 Avebury, Lord, 255, 276 



Bacteria, 87, 109, 111 ; soil, 271 ; 



luminescence of, 490 

 Baitsell, G. T., 446 

 Balance of Nature, 264 

 Baldner, 469 



Baldwin, Prof. J. Mark, 517 

 Ballowitz, Prof., 30 

 Barbour, Thomas, 270 

 Barnacles, 448 

 Bataillon, 385 

 Batesian mimicry, 32 

 Bateson, 516, 582 

 Bats and birds, struggle between, 



20 

 Becquerel, 483 

 Beddard, P. E., 532 

 Beebe, 620 

 Bee-hive, 339 

 Bee-hunter, 425 

 Bees and flowers, 274 

 Beetles in ants' nests, 52 

 Behaviour, capacity for, 476 ; 



intelligent, 241 

 Berg, L. S., 113 

 Bergson, 5, 208, 241, 477, 507. 



634, 641, 646 

 Bernard, Claude, 279 

 Bert, Paul, 85 

 Bethe, 238 

 ' Big Trees,' 153 

 Birds, adaptations of, 124 ; and 



bats, 20 ; distributing animals, 



114 

 Bird-bergs of Lapland, 8, 9 

 Birgus, 119 



651 



