460 



INDEX 



Antibodies, 333 

 Antipatharians, 230 

 Antiquity of man, 360 

 Antlers of stag, 344 

 Ant-lion, 126 

 Ants, 30, 84, 114, 126 



- and aphides, 127 



- brain of, 90 



- and seeds, 128 



- solitary, 89 



- and way-finding, 1 37 



- white, 90 

 Anura, 277, 278 



Ape's pectoral girdle, 292 



Aphosnogaster barbarus, 128 



Aphides, 34, 87, 127, 392 



Aphrodite, 239, 241 



Apis, 84 



Appendages of caterpillar, 255 



of crayfish, 250 



- of Crustacea, 249 



- of insects, 253, 254 



- of spiders, 257 

 Appendicularia, 269 

 Apteryx, 291 

 Apus, 251 

 Arachnids, 258 

 Araschnia levana, 394 



prorsa, 394 

 Archseopteryx, 291, 343 

 Archi- annelids, 241 

 Archigetes, 236 



Argus pheasant, 109 



Arion ater, 260 



Aristotle, 97, 207, 258, 265, 298, 



412, 413 



Aristotle's lantern, 244, 355 

 Arius, 117 

 Armour, 36 

 Arnold, 398 

 Artemia, 248 

 Artemia salina, 390, 391 

 Arthropods, 246 

 Artificial parthenogenesis, 311 

 Artistic skill among animals, 174 

 Ascent of man, 357 

 Ascidians, 152, 212, 269 

 Asexual reproduction, 299 

 Asp, 285 

 Astacus, 250 



Asteroids, 243 

 Atavism, 365 

 Atemeles, 88 

 Atlantosaurus, 281 

 Aulostoma, 242 

 Aurelia aurita, 155, 230 

 Australian mammals, 48, 293 

 Automatisatioii, 173 

 Autotomy, 68, 163 

 Avebury, Lord, 87, 89 

 Axolotl, 278, 389, 390 



Baboons, 77, 78, 295 



Backbone, 211 



Backboned animals, 265-97 



Backboneless animals, 219-64 



Bacteria, 21, 220 



Balance of Nature, 21 



Balanoglossus, 267 



Baldner, 271 



Barnacles, 251 



Bat, wing of, 208 



Bates, 62, 63, 64, 86 



Batesian mimicry, 64 



Bateson, 65, 378, 427 



Bath sponge, 226 



Bats, 294 



Battles of ants, 87 



Beauty, 14, 195 



Beavers, 171 



Bechstein, 103 



Beebe, 392 



Beef-eater birds, 73 



Bees, 114 



- hive, 80 



- humble, 83 



- solitary, 83 



- and way-finding, 137 

 Beetle, 254 



Beetles, 407 

 Behaviour, 184 



- of animals, 158-179 



- of chimpanzee, 171 



- of Echinoderms, 245 



- of Foraminifera, 178 



- of hermit crabs, 172 



- of mason-bee grub, 169 



- of Paramecium, 160 



of Procession caterpillars, 1 6 1 



of sea-anemone, 161 



