INDEX 
ACC 
A ccoucheur, fish, 246 ; toad, 
254 
Aeerina cernua , 246 
Acinia prehensa , 233 
Actinia , 233, 234 
Actinophrys , apparent intelligence 
of, 20 
Adamsia, 234 
Adaptive movement, as evidence of 
mind, 2, 3 
Addison, his definition of instinct, 
11 
Addison, Mrs. K., on gesticulating 
signs made by a jackdaw, 316 
iElian, on division of labour in har- 
vesting ants, 98 
^Esthetic emotions of birds, 279- 
82 
Affection, sexual, parental, and social, 
of snails, 27 ; of ants, 45-9 and 
58, 59 ; of bees, 155, 156, and 162; 
of earwig, 229 ; of fish, 242-6 ; of 
reptiles, 256, 258, 259 ; of birds, 
270-6; of kangaroo, 326, 327 ; of 
whale, 327 ; of horse, 329 ; of 
deer, 334 ; of bat, 341 ; of seal, 
341-6; of hare, 338-40; of rats, 
340 ; of mice, 341 ; of beaver, 367 ; 
of elephant, 387-92; of cat, 411, 
412 ; of dog, 437, 440, 441 ; of 
monkeys, 471-5 and 484-98 
Agassiz, Professor A., on instinct of 
hermit-crab, 232 ; nest of fish, 242- 
3 ; on beaver-dams, 384, 385 
Agassiz, Professor L., on intelligence 
of snails, 26 
Alison, Professor, on curious instinct 
of polecat, 347 
ANT 
Allen, J. A., on breeding habits of 
pinniped seals, 341-6 
Alligators, 256-8 and 263 
Alopecias vulpes , 252 
Amoeba , apparent intelligence of, 21 
Anemones, sea, 233, 234 
Anger, of ants and bees, see under ; 
of fish, 246, 247 ; of monkeys, 
478, 479 and 484-96 
Angler-fish, 247, 248 
Annelida , apparent intelligence of, 
24 
Antennas, effects of removal in ants, 
142 ; in bees, 197 
Ant ith^sis, principle of, in expression 
of emotions by monkeys, 494, 495 
Ant-li >n, 231, 235 
Ants, powers of special sense, 3 1 -37 , 
of sight, 31-33 ; of hearing, 33 ; 
of smell, 33-37 ; sense of direc; ion, 
37, 38 ; memory, 39-45 ; recogni- 
tion of companions and nest- 
mates, 41-45; emotions, 45-49; 
affection, 45-48 ; sympathy, 48, 
49; communication, 49-57 ; habits 
general in sundry species, 57-93 ; 
swarming, 57, 58 ; nursing, 58, 
59 ; education, 59, 60 ; keeping 
aphides, 60-64 ; making slaves, 
64-68 ; wars, 68-83 ; keeping 
domestic pets, 83, 84 ; sleep and 
cleanliness, 84-7 ; play and leisure, 
87-89 ; funeral habits, 89-93 ; 
habits peculiar to certain species, 
93-122 ; leaf-cutting, 93-96 ; har- 
vesting, 96-110 ; African, 110, 
111 ; tree, 1 10, 111 ; honey making, 
111-114 and 142 ; ecitons, or mill- 
