284 



INDEX 



Baldwin, J. M., 138, 178, imitation, 



257 



contra Lamarckism, 124 

 organic selection, 136 ff 

 pleasure and pain in accommo- 

 dation, 173-175 

 problem of learning, 172 

 Ball, W. P., 138 

 Bancroft, F. W., 61, electrotaxis in 



Paramcecium, 60 

 Barotaxis defined, 34 

 Bateson, W., 230, intelligence in 



fishes, 220 



Bees, communication, 215 

 homing, 193, 196 ff 

 influence of numbers on pug- 

 nacity, 207-209 

 intelligence, 193, 196-201, 207- 



209, 215 



and Lamarkism, 126 ff 

 remembering flowers, 200-202 

 Beetles, intelligence, 192, 206 

 Belt, T., intelligence of Cebus, 267 



intelligence of wasp, 195 

 Bentley, I. M., intelligence of chub, 



222 



Bentley, M. See Day, 87 

 Berry, C. S., 258, imitation in cats, 



256 

 imitation in white rat, 255, 



256 



Bethe, A., 16, 189, 215, conscious- 

 ness in animals, 4, 6 

 homing of ants and bees, 193, 



199 



homing of limpets, 187 

 lack of learning in Carcinus, 



182, 183 

 Binet, A., 89, behavior of -Protozoa, 



63-65 

 capture of food in Didinium, 



78 



relation of reason to percep- 

 tion, 248 



Birds, fear in, 96, 121-123 

 imitation in, 254, 257 



Birds, intelligence, 165, 166, 176- 



178 



migration, 108 



variations in instinct, 133. See 

 also particular species 

 Blanchard, E., intelligence of 



beetle, 206 

 Blow-flies, instincts, 93 



phototaxis of larvae, 21, 42, 



43 



Bodo, capture of prey, 64, 65 

 Bohn, G., 10, 61, 162, conscious- 

 ness in animals, 4 

 definition of instinct, 92 

 differential sensibility, 152 

 fatigue sensorielle, 143 

 geotaxis in Convoluta, 31, 156 

 homing of limpet, 118 

 law of varied responsiveness, 



145 



phototaxis of Littorina, 156, 



157; of Pleurosigma, 156 



reactions of Cerianthus, 144, 



145 

 reactions of animals to colored 



lights, 47 



rhythms of activity, 155 ff 

 tidal rhythms of Convoluta, 

 31, 156; of Pleurosigma, 

 156; of anemones, 158; 

 of Littorina, 156, 157 

 tropisms, 18 

 Bostok, F., 258 



Branchellion, interference of reac- 

 tions, 140 

 Brehm, A., 279 

 Bumble-bees, 208, 209, 215 

 Burroughs, J., 258 

 Buttel-Reepen, H. von, 216, com- 

 munication in bees, 215 

 courage in bees, 207 

 homing in bees, 193, 197 

 evolution of the 

 bee community, 128 



Carcinus, intelligence, 182-184 



