I N D I-: X 



Heart, the. 228; work of the, 



277- 

 Heat, sensation of, 300, 301. 

 Heaven, 109. 

 Hedonism, 84. 

 Hehotropism, 298. 

 Ilelmholtz on the origin of Hfe, 



339- 

 Herachtus on hfe, 28. 



Heredity, conservative and pro- 

 gressive, 368; cumulative. 

 369; theories of, 135, 136, 

 366. 



Hermaphrodism, 245, 246, 258, 



259- 

 Hermaphroditic glands, 249. 

 Hertwig, O., on the biogenetic 



law, 382 ; on the monera, 



31- 

 Heterogenesis, 254. 



His, W., theories of, ;^8^. 



Histolysis, 106. 



Histona, the, 36. 



Histonals, 165, 166, 171, 182. 



Historical waves, 389. 



History, 461; nature of, 9; 

 sources of, 9. 



Hofmeister on organic chemis- 

 try. 45- 



Holosphnera. 173. 



Honor, false sense of, 430. 



Huxley on organic individual- 

 ity, 152. 



Hyaloplasm. 130, 143. 



Hybrids, 255, 256; fertility of, 



Hydrf>static movements, 270. 

 Hygiene, 401, 464. 

 Hylonism. 82. 

 Hylozoism, 8r. 86, 451. 

 Hypogenesis, 255. 

 Hypotheses, nature of, 54; 

 necessity for, 86, 87, 89, 



378. 439- 



Idealism, theoretical aiid prac- 

 tical, 84, 92. 



Idiocy, 20. 



Idioplasm theory, the, 136, 137, 

 366, 367. 



Ileum, the, 226. 



Imugmation, function of the, 



Imbibition energy of plasm. 



Imbibition in organisms, 261. 

 Immaterial world, the, 436, 



437- 

 Immortality, the l)elief in, 64, 



65, 71, 108; of the uni- 



cellulars, 99-101. 

 Incurables and suicide. 118, 



' } 9 • 

 Individuality, organic. 149, ic2. 

 Infusoria, movement in the, 



268, 269, 272. 

 Inoculation, 204. 

 Insanity, increase of, 114, 118, 



119. 

 Insectivorous plants, 304, 305. 

 Instinct, 418. 

 Intelligence, 316, 317. 

 Intercellular matter, 145. 

 Intussuscc|)li<)n, 42. 

 Ionic philosophers, the. 66. 

 Irritability, 287, 288. 291, 293, 

 Isopola. 174. 



Ka.vt as natural historian, 9; 

 biological ignorance of, 11, 

 318, 319; critical views of, 

 438; C(jntradictory views of. 

 68. 434. 444; influence of. 25; 

 mechanical views of, 435; 

 moral j)hilosophv of. 412, 

 413; mystic trainmg of. 443; 

 narrow life of, 443: philos- 

 ophy of. 68. 6(). 74. 434- 

 440; popularity of. 444: 

 theory of knowledge of. 9. 10, 



,'^9. 317-319. 332; 

 Kassowitz on archijjony. 355. 

 Kelvin, honl. on the oriinn of 



life. 339. 

 Kidneys, the. jj^ji. 

 KirehhofTon the work of science. 



(i. 

 Knowletlge. a priori and a 



p<y.s tirinri, 11. 24, 317; and 



faith compared, 54; dualistic 



47Q 



