INDEX. 



537 



Designed action in animals, 500. 

 Devonic period, 77, 91, 101, 172, 184, 



186, 188, 36a, 415, 430, 422. 

 Diadectidae, 89. 

 Diadiaphorus, 359. 

 Dibamidae, 123. 

 Dicrocerus, 315. 

 Didelphodus, 335. 

 Didyinium sguamulosujn, 220, 

 Digits, number of, 309. 

 Dimorphodon, 120. 

 Dimya, 267. 



Dinocerata, 314, 315, 356. 

 Dinosauria, gS, 114, 116, 120, 121, 122, 



304, 372- 

 Dioplotherium, 330. 

 Diplarthra, 84, 12S, 133, 136, 143, 144, 



146, 293, 295, 297, 300, 302, 305, 306, 



312, 313, 320, 332, 360, 403. 

 Diplogenesis, 12, 441, 443, 470. 

 Dipneusta, 8g. 

 Dipnoi, 89, 99. 

 Diprodontidae, 143. 

 Diptera, 203, 204. 

 Dipus, 361. 

 Disciniscus, 177. 

 Dissacus, 302. 

 Disuse in Mammalia, 352. 

 Dog-opossum, 22. 

 Dohrn, 204, 



Dolichotis, 361 ; D. patachonica, 305. 

 Dollo, 121. 

 Domestic fowls, 21. 

 D'Orbigny, 417. 

 Dorypterus, 103. 

 Driesch, 457. 



DuBois, Dr., 159, 168, 169. 

 Dum€ril, 58. 



Dynamical evolution, 524. 

 Dyscophidae, 70. 

 Dysodus, 59, 146. 



Echidermata, 368. 



Echinodermata, 80, 81, 82, 83. 



Echinus, 457- 



Ectal mastication, 318. 



Edaphoceras, 186. 



Edentata, 127, 13a, I33. 138. 141. MS. 



145, 186, 195. 303. 305, 310, 356, 360. 

 Education, 505. 

 Eels, 103. 



Eftect of feeding on color in birds, 

 238. 



Effect of light on the colors of fiat- 

 fishes, 238. 



Effects of consciousness, 509, 



Eflficient cause, 10, 497, 498. 



Eigenmann, C-, 244. 



Eimer, 23, 45, 25a, 254, 527. 



Elasmobranchii, 91, 94, 95, gg. 



Elasmotherium, 314. 



Elbow-joint, of Cervus elapkus^ 296; 

 of chimpanzee, 2g5 ; of horse, ab- 

 normal, 278; human, abnormal,277. 



Elephas, 145, 330. 



Elliot, D. G., 531. 



Elosia nasus Licht, 68. 



Embolomeri, 88, log, iic. 



Embryology, 202, 209, 401. 



Embryonic variations, 444. 



Emphytogenesis, 486. 



Endoceras, 186. 



Endolobus, 186; E. excavatum, 417. 



Energies, specific, 480. 



Energy, 448, 451, 506, 507, 512; synop- 

 tic table of, 484; anagenetic, 478, 

 484 ; definition pf, 473 ; of evolu- 

 tion, 473 ; catagenetic, 479,484; cor- 

 relation of, 506 ; inorganic, 475, 484, 

 512: composition of, 490, 



Engystomidae, 70. 



Enhydra, 352. 



Ental mastication, 318. 



Enioconcha mirabilis, 213. 



Environment, physical influences of, 

 436, 452, 475- 



Eocene, 61, 104, 135, 138, 139, 142, i43. 

 145, 147. 150. 154. 155. 173. 205, 304- 

 365. 377. 



Epigenesis, 13. 



Epihippus, 147, 148. 



Epilasmia, 107. 



Epilepsy in Cavia, 430. 



Equidae, 313. 



Equilibrium, 508. 



Equus, 145, 149, 359 ; E. caballus, 84, 

 300. 



Ergogenesis, 486. 



Erinaceus, 127. 



Erismatopterus, 104. 



Eryops inegacepalus, 371. 



Esquimaux, 61, 153* 



