Falcons, training of, 137 Fear in birds not inherited in specific direction, 49, 110 Feelings and emotion, 235 ff.; evolution of, 282; feeling-tone, 240 Ferns, fertilization of, 24 Fertilization of ferns, 24; of _Valisneria_, 28; of orchids, 29 FINN, Mr. Frank, on the acquisition of experience by young birds, 50 Fission, reproduction of Paramecium by, 4 Flight, instinctive, 86 FOREL on _Componotus_, 211 FOSTER, Sir Michael, on consciousness accompanying reflex action in pithed frog, 33 Frog, reflex action in, 33, 299, 300 Functional selection, 163 Fungus garden of ants, 216 G GARNER, Mr. R. L., “The Speech of Monkeys,” 198 Gas-engine, analogy of, 20 General and abstract ideas, 57; generalization, 167; germs of, 332 ff. Generic image, 162; situations, 163 Germinal substance, continuity of, 328 GOULD, Dr., on humming-birds, 273 GREEN, Mr. E. G., on ants, 210 Greenfinch, nest of, 135 GROOS, Prof., on instinct, 64; origin of, 116; on imitation, 187; on animal play, 248 ff.; on “Love Play,” 259; on coyness of female birds, 264; on choice in mating, 267; on make-believe, 280 H Habits and habitual acts, 107, 177 HAGUE on ants, 199 HAMERTON, P. G., on trained dog, 152 HANCOCK, Dr. John, on cuckoo, 92 Heredity and circumstance, 39; twofold aspect of, 40; relation of to use, 170, 177; in evolution as continuous, 326 Homing of bees, 131 Homœopathic influence defined, 36 Honey-pot ant, 215 House-martin, nest-building of, 113 HUDSON, Mr. W. H., on fear in birds, 49, 50, 110; on animal gladness, 317 Hunting play, 254 HUXLEY, T. H., on reflex action in frog, 300; on consciousness as epiphenomenon, 306 ff.; on consciousness as product of nervous changes, 330 HYDE, Mr., on king-crab, 298 _Hydractinia_, colonial polype, 206 I Ideals, distinguish ethics, 278 Ideational stage of mental development, 59 Imitation, 179 ff.; three stages of in child, 192 Impulse in intelligent behaviour, 60; Prof. Thorndike’s use of the term, 186; connection of with conative process, 235 Independence of automatic and controlling centres, 43 Infant, congenital responses in, 54 Influence of intelligence on instinct, 169 Inheritance of acquisitiveness, 40 Innate capacity, 176; likes and dislikes, 119 Insects, instinctive behaviour in, 71; intelligent behaviour in, 123 Instinct, broader and narrower view of, 99; primary and secondary, 108, 109; influence of intelligence on, 169; priority of, to intelligence, 173; disintegration of, 175 Instinctive behaviour defined, 63; in insects, 71; in birds, 84; conscious aspect of, 98 Integration and differentiation of nerve-centres, 167