464 



INDEX 



Children, early speech in, 322-329, 



358, 359 



(see Infants} 



Christian Socialism, 385 

 Classification, preparatory work of 



Science, 368 

 Coelenterata, evidence as to learning 



by experience among, 128, 129 

 Cole, L. W., 243, 263, 300, 306 

 Common sense, 365, 366 

 Comte, Auguste, 373 

 Conation, 20, 57 et seq. 

 Concept, the, Ch. XIV 

 ,, the Collective, 338 

 ,, the Individual, 338 

 Concepts, general, 329 et seq. 

 Conceptual thought, products of, Ch. 



XV 



Conceptual thinking and Will, 349 

 Conduct, standardising of, 353 

 Confirmation and Inhibition, 114 

 Cornish, C.J., 309, 311 

 Correlation of intelligent organisms, 6 

 ,, of Experiences and Actions, 



132, 171 



,, work oi Intelligence, 6, n 

 ,, of sciences is work of 



philosophy, 371 

 Correlation, summary of stages of, Ch. 



XVII 



Craig, Mr. Wallace, 68, 69, 81 

 Crickets, powers of separate nerve- 

 centres among, 416 

 Cross-relation, 333 

 Crustacea, 80, 85, 139 

 Cuvier, Baron George, 287 



Dahl, F., 68, 83, 86, 117, 301 

 Darwin, Charles, 46, 51, 134, 140, 



311, 315*324, 325 

 Dawson, Mr., 140, 141 

 Definition, part played by in science, 



367 

 Desire, development of, 350 



,, nature of, 165, 361, 431 

 Development, general character of, 



Ch. I 



,, human, 388 



,, self-conscious, Ch. XIX 



373 



Diezel, Herr, 317 

 Direction experiments, 256 et seq. 

 Discrimination experiments, 220 et seq. 

 Dogs : Mr. Lloyd Morgan's Tony, 175 

 ,, Mr. Thorndike's, 176 

 using lever, 194, 195 

 ,, imitation experiments with, 221 



Dogs : Jack, character of, 190 

 ,, pulling string, 192 

 ,, ,, pulling string on banisters, 



.193 



,, ,, using lever, 195 

 ,, ,, ,, pull-bolt, 196-199 



,, ,, ,, p ush- back bolt, 200- 



202 



,, ,, lifting catch, 203, 204 



,, ,, loop, 207 



,, ,, pulling spike, 208 



,, ,, upsetting jug, &c., 212 



,, ,, lifting cover, 212, 213 



,, ,, opening drawers, 213-216 



sliding lid, 217 



,, ,, pushing door, 217, 218 



,, ,, knocking off weight, 218, 



219 



,, ,, failing with basket, 219 

 ,, ,, failing with hook, 219, 220 

 ,, ,, "control" with experi- 

 ments, 221 



,, ,, pulling strings, 223-226 

 ,, ,, ,, tied cord, 226, 227 



" Double movement " tricks, 237 



Driesch, Prof., 29, 36, 37 



Ebbinghaus, Prof., 154, 155, 158 

 Echinodermata, 3 



Elberfeld Horses, the, 306, Appendix 

 Elephants, retrogressive assimilation 



among, 126 

 using pull-bolt, 198, 199 



,, push-back bolt, 203 

 lifting catch, 206 

 pulling tied cord, 229 

 reaching with stick, 277 

 using automatic machine, 



296 



,, low fertility of, 421 



Encouragement, use of in experiments, 



1 88 



European countries and infant mor- 

 tality, 426-432 

 Evers, Herr, 137 



Evolution, general character of, 1-5 

 , , Haeckel's scheme of organic, 



3 



,, anstogemc, 5 

 ,, orthogenic, 5-10, 347, 413, 



437, 441, 442 



,, biological, inorganic char- 

 acter of, 436 

 self-conscious, Ch. XIX 

 Experience and Inference, 108, 116 

 ,, as regulating Instinct, 90 

 ,, modifying a reaction, 108, 

 in 



