586 
Democritus, 565 
Deniker, 131 
Descartes, 5 
Descent, history of doctrine of, 3 
Descent of Man, G. Schwalbe on The, 
112-136 
— Darwin on Sexual Selection in The, 277, 
296 
— rejection in Germany of The, 145 
Desmatippus, 191 
Desmoulins, A., on Geographical Distri- 
bution, 320 
Detto, 2271, 242? 
Development, effect of environment on, 
229-233 
Dianthus caryophyllus, 409, 416 
Diderot, 7, 447 
Digitalis purpurea, 415 
Dimorphism, seasonal, 23 
Dismorphia astynome, 57 
D. orise, 58 
Distribution, H. Gadow on Geographical, 
319-336 
— Sir W. Thiselton-Dyer on, 298-318 
Dittrick, O., 5161 
Dixey, F. A., on the scent of Butterflies, 296 
Dolichonyx oryzivorus, 297 
Dorfmeister, 258 
Down, Darwin at, 378, 379 
Draba verna, 69 
Dragomirov, 471 
Driesch, experiments by, 254, 268 
— 912 
Drosera, Darwin’s work on, 390, 392 
Dryopithecus, 127 
Dubois, E., on Pithecanthropus, 127, 131 
Diihring, 459, 474 
Duhamel, 223 
Duncan, J. 8., 272, 278 
Duncan, P. B., 272, 2731 
Duns Scotus, 448 
Duret, C., 6 
Durkheim, on division of labour, 475 
Dutrochet, 386 
Echinoderms, ancestry of, 199 
Ecology, 326, 336, 420, 4581 
Eimer, 101 
Ekstam, 302 
Elephants, geological history of, 194, 195 
Elymnias phegea, 57 
E. undularis, 55, 57 
Embleton, A. L., 105? 
Embryology, A. Sedgwick on the influence 
of Darwin on, 171-184 
Index 
Embryology, as a clue to Phylogeny, 173- 
176 
— the Origin of Species and, 143, 144 
Empedocles, 4, 21, 141, 169 
Engles, 474, 475 
Environment, action of, 10, 11, 13, 125, 
177, 240-246 
— Klebs on the influence on plants of, 
223-246 
— Loeb on experimental study in relation 
to, 247-270 
Eohippus, 190, 191 
Epicurus, a poet of Evolution, 5 
Eristalis, 57 
Ernst, 378 
Ernst, A., on the Flora of Krakatau, 317, 
318 
Eschscholzia californica, 414-417 
Espinas, 473 
Eudendrium racemosum, 260 
Evolution, in relation to Astronomy, 548- 
564 
— and creation, 485 
— conception of, 4-6, 9, 139, 141, 447 
— discontinuous, 23, 67 
— experimental, 6, 7 
— factors of, 10-13 
— fossil plants as evidence of, 200 
— and language, 512 
— of matter, W. C. D. Whetham on, 565, 
582 
— mental, 445 
— Lloyd Morgan on mental factors in, 
424-445 
— Darwinism and Social, 15 
— Saltatory, 22-25 
— Herbert Spencer on, 451-453 
— Uniformitarian, 379 
— Philosophers and modern methods of 
studying, 5 
Expression of the Emotions, 482-436 
Fabricius, J. C., on geographical distribu- 
tion, 319 
Farmer, J. B., 1067, 110? 
Farrer, Lord, 378 
Fearnsides, W. G., 340 
Felton, S., on protective resemblance, 
Ferri, 474 
Ferrier, his work on the brain, 523 
Fertilisation, experimental work on animal.-, 
248-255 
Fertilisation of Flowers, 401-424 
Fichte, 464 
Field, Admiral A. M., 369 
