INDEX. 



539 



Hemibranchii, 104, 106. 



Hemimaniis, 71, 



Hemiphractidae, 71, 



Henke, 277, 283, 528. 



Henslow, G., 23, 226, 227, 228, 383, 384, 

 527. 



Herdman, 215. 



Heredity, 398. 



HerJng, 492. 



Hertwig, 456, 457. 



Hesperornithidae, 124. 



Heteroglossa, 71, 



Heterologous series, 71. 



Heteromorphosis, 455. 



Heterosomata, 105, 106. 



Hilgard, S. W., 433. 



Hinnites, 267. 



Hippocampidae, 105. 



Hippopotamidae, 6g. 



Hippopotamus, 330, 402. 



Hippotherium, 84, 149, 359; H. medi- 

 terraneuTHy 84. 



Hoffding, 498. 



Holocephali, 99. 



Holoptychiidae, gi. 



Holostei, loi, 102. 



Holostomi, 106. 



Hominidae, 157. 



Homo, 155, 158, i6g, 170. 



Homogeneous series, 71. 



Homogeny, 72. 



Homologous, series, 71. 



Homology, 19. 



Homo neanderikaiensiSf 170 ; H. sa- 

 piens, 170; H. erectus, i6g. 



Homoplassy in Mammalia, 72, 357. 



Homoplastic series, 71. 



Hoplobatrachus, 71. 



Horn, G. H., 25, 29. 



Horns, 314 ; of Cervus elapkus, 197, 



Horse, evolution of trotting, 426; H. 

 phylogeny of, 146, 522. 



House-fly, 254. 



Hunger, 504. 



Hurst, C. H., 205, 207. 



Hater, 251, 275. 276, 331. 



Huxley, 89, 99. 476. 



Hyaenidae, 145, 342. 343- 



Hyaenodon, 343. 



Hyatt, A., 8, g, 10, 175, 182, 183, 201, 



202, 266, 268, 405, 420, 451, 520, 528, 

 529. 530, 531- 



(^ybodtfsr3^2. 



ffyk^p^T^'m^uitaius, 22. 



Hydroids, 82. 



Hydrotropism, 501. 



Hyla, II, 198, igg ; H .carolinensis, ^gg; 

 H. graiiosa:, 499. 



Hylella, 71, ig8, 199. 



Hylidae, 65, 70, 198. 



Hylobates, 159. 



Hymen, 399. 



Hymenoptera, 82, 203. 



Hyopotamus, 312. 



Hyperolius, 71. 



Hypothesis of the origin of the divi- 

 sions of the Vertebrata, 362. 



Hypsiboas donntercii D. and B., 68 ; 

 H, punctatus Schu., 68. 



Hyracoidea, 132, i33i 141. 143. 332. 



Hyracotheriinae, 313. 



Hyracotherium, 147, 148, 302. 



Hystricidae, 351. 



Ibacus, 274. 



Ichthyocephali, 106, 



Ichthyopterygia, 113, 116, 121. 



Ichthyornithidae, 124. 



Ichthyosaurus, 121. 



Ichthyotomi, lOO. 



Icichthys, 108. 



Icosteus, 108. 



Iguanidae, 73. 



Impact, 277, 284, 287, 291, 302, 305, 311, 

 485- 



Impressed zone of the nautiloids, 405. 



Increase of size through use, 304. 



India, 159. 



Indo-Europeans, 153. 



Inexact parallelism, 200. 



Influence, of external stimulus on mo- 

 tions of animals, 496 ; of the mental 

 condition of the mother on the fce- 

 tus, 434, 451; of mind on coloration, 

 499; of mind on matter, 498. 



Infusoria, 79, 511. 



Inheritance, of acquired characters, 

 401, 405 ; of characters due to dis- 

 ease, 430; conditions of 438, 440, 

 of exercise of function, 426; of mu- 



