2096 
Experiments, need of, in animal psy- 
chology, 26; with cats, 35 ff., 85 ff., 
103 ff., 111 f., 114 f., 129 ff., 138 £.; 
with chicks, 6x ff., 81 ff., 132, 136, 
143 £., 156 ff.; with dogs, 56 ff., o1 ff., 
103 ff., 115 f.; with fishes, 169 ff.; 
with monkeys, 176-235, passim. 
Fears, of chicks, 162 ff. 
Fishes, experiments with, 169 ff. 
Gatton, F., 3. 
Habit. See Association. 
Hatt, G. S., 3. 
Human. See Man. 
Hunger, effect of, on animal learning, 
a7 f, 
Hunt, H. E., 163. 
Ideas, development of, 121 f., 289 ff.; 
existence of, as adjuncts in animal 
learning, 108 ff., 189 ff., 206 ff., 222 ff. ; 
impotence of, to create connections, 
257 ff. 
Ideo-motor action, 257 ff. 
Images, 108 f. See also Ideas. 
Imitation, analysis of the supposed efiects 
of, 251 ff.; in cats, 85 ff.; in chicks, 
8x ff.; in dogs, 91 ff.; in general, 76 ff., 
94 ff.; in monkeys, 96, 211 ff., 210 ff.; 
in speech, 253 ff. 
Impulses, as features of the associative 
processes, 100 ff.; defined, 37. 
Incubation, the instinct of, 276 ff. 
Individual differences in association, 52 ff. 
Inhibition of instincts by association, 
142 ff. 
Instincts, as explanations of some cases 
of supposed imitation, 251; inhibition 
of, 142 ff.; of chicks, 156 ff.; of in- 
cubation, 276 ff.; of monkeys, 237; 
the starting-point of animal learning, 
36 f. 
Intellect. See Association, Ideas, Imita- 
tion, Memory, Reasoning, etc. 
Interaction, 147 f. 
Introspection, the over-emphasis of, 3. 
James, W., 3, 120, 143, 286. 
Jennincs, H. S., 267, 268, 269, 270, 274, 
279. 
Kure, L. W., 173. 
Index 
Language, 253 ff. 
Learning, evolution of, 278 ff.; methods 
of, 174 f. See Association, Behavior, 
Ideas, Imitation, Reasoning. 
Luszock, J., 240. 
Man, compared with lower animals in 
intellect, 123 ff., 239 f.; mental evolu- 
tion of, 282 ff. 
Memory, 108 f., 138 ff., 203. See Asso- 
ciation and Permanence of associa- 
tions. 
Methods in animal psychology, 22 ff. 
Mitts, W., 191. 
Monkeys, 172 ff.; associative processes 
in, 182 ff.; differences from lower 
mammals, 189 ff., 204 ff., 237 ff.; 
general mental development of, 236 ff. ; 
imitation of man by, 211 ff.; imitation 
of other monkeys by, 219 ff.; possible 
mental degeneracy of, 151; presence 
of ideas in, 189 ff., 206 ff., 222 ff.; 
reasoning in, 184 ff. 
Moreay, C. L., 3, 80, 99 f., 101, 119, 120, 
125 f., 146, 147, 162, 165 f. 
Motives, used in the experiments, 26 ff.; 
defined, 38. 
Number of associations, 135 ff.; asa cause 
of the development of free ideas, 121 f. 
Pecxuam, G. W. and E. G., 240. 
Pecking, accuracy of, in chicks, 159 f. 
Pedagogy, applications of animal psy- 
chology to, 149 f. 
Permanence of associations, 138 ff., 203. 
Predictability of behavior, 241 f. 
Primates. See Monkeys. 
Reasoning, 118 f.; and free ideas, 291 ff.; 
as a consequence of the laws of exer- 
cise and effect, 263 ff.; in cats and 
dogs, 67 ff.; in monkeys, 184 ff. 
Recepts, 120. 
Resolution, Jennings’ law of, 267 ff. 
Responses to situations as the general 
form of behavior, 242 ff., 283 f. 
Romanes, G. J., 68 f., 70, 80. 
SANTAYANA, G., 6, 18 f. 
Satisfaction, the influence of, in learning, 
147 f., 244f.; the nature of, 245 f. 
Situation and response as the general 
form of behavior, 242 ff., 283 ff. 
