516 



INDEX. 



nies the kinship between philosopliy 

 and common-seuse, i. 124. 

 Heineccius, his definition of status, iL221. 

 Heliconias, ii. 26. 

 Hellenic political system, cause of its 



premature overthrow, ii. 218. 

 Helvetius, i. 118. 

 Hennell, Sara, ii. 503. 

 Herakleitos, his belief that the universe 



is in a ceaseless flux, i. 312. 

 Heredity as an element ia the organiza- 

 tion of experiences, ii. 149. 

 Heresy, its social value, ii. 272. 

 Herschel, Sir W., his theory of the con- 

 stitution of nebulae, i. 386. 

 Heterogeneity defined, i. 336. 

 Heterogeneity of society as checking 



warfare, ii. 251. 

 Hipparchos, i. 199. 

 Hipparion and its kindred, L 452. 

 Hippokrates, i. 224. 

 Hobbes, i. 117, 121, 211 ; his conception 



of society as a Leviathan, iL 226. 

 Holbach, i. 118. 

 Homesickness, ii. 328. _ 

 Homogeneity defined, i. 336. 

 Homogeneous, instability of, i. 353. 

 Horse, pedigree of, ii. 242. 

 Hugigrins, W., determmes the proper 

 motion of Sinus, i. 207 ; demonstrates 

 the gaseous condition of ii'resolvable 

 nebulae, i. 386.1 

 Humanity, leligion of, ii. 417. 

 Humble-bees and red clover, L 308. 

 Hume, i. 47, 86, 118, 127, 155. 

 Hunter, W. W., on reUgion of Santals, 



ii. 458. 

 Button, R. H., his misinterpretation of 



Mr. Spencer, ii. 339. 

 Huxley, T. H., i. 129, 164, 166, 175, 185, 

 227, 232, 247, 262 ; his classification of 

 animals, i. 450 ; his remark about final 

 causes, ii. 384. 

 Huyghens, his theory of light, i. 130. 

 Hybrids, infertility of, ii. 44. 

 Hydra, its ability to distinguish light 



from darkness, ii. 90. 

 Hygienic fallacies, i. 150. 

 Hypothesis, its requisites, L 137, 266. 



CcHTHTOSAUBTANS and whales, ii. 58. 

 Iconoclasm as illustrating statical habit 



of thought, ii. 476. 

 Ideal types of manhood in ancient and 



modern times, ii. 207. 

 Idealifeni, i. 45, 74^90._ 

 Ideas and sensations, ii. Til* 

 Ideational centres, IL 137* 



Identity of contradictories, how far tnUk 



i. 119. 

 Janes fatui, fetishistic interpretation of, 



i. 197. 

 Ignorance consists in failure to classify, 



L 31. 

 Immobile civilizations, explanation of, ii. 



276. 

 Inconceivable, ambiguity of the word, i. 

 61 ; difference between inconceivable 

 and incredible, i. 62. 

 Inconceivability-test, what is meant by 



it, i. 69 ; ii. 162'. 

 Increase of plants and animals, high rate 



of, ii. 11. 

 Individuals, their influence in history, ii. 



237. 

 Individuation, ii. 95, 223. 

 Induction, its weakness illustrated by 



Newton's discoveries, i. 266. 

 Infancy, origin of, ii. 159, 342 ; how the 

 prolongation of it gave rise to society, 

 n. 344, 360, 369. 

 Infants, crying of, i. 104. 

 Infinite, the, i. 7, 13. 

 Inflexibility of mind in lower races, iL 313. 

 Innate ideas, i. 46, 101, 115 ; ii. 161. 

 Inorganic physics, how divided by Comte, 



i. 192. 

 Insects, origin of, i. 345; their relatiora 



with flowers, ii. 28. 

 Instability of the homogeneous, i. 353. 

 Instinct, inheritance of, ii. 150 ; how dis- 

 tinguished from reflex action, ii. 152 ; 

 how it merges into reason, ii. 154. 

 Integration defined, i. 336 ; degree of, an 

 important test in classification, i. 347. 

 Intuitional knowledge, ii. 161. 

 Isolation, its effects upon social develop- 

 ment, ii. 276. 

 Isomeric transformations in nerre-fibres, 

 iil36. 



Jacobinism, origin of, iL 476 ; tendency 

 toward social dissolution, ii. 482. 



Jaws, diminution of, ii. 320. 



Jesuit missionaries in Paraguay, iL 304. 



Joule's discovery of the mechanical equi- 

 valent of heat, L 34, 203. 



Julian, ii. 490. 



Jupiter, his pfiysical condition, i. 377. 



Juristic writers of the seventeenth oeif 

 tury, ii. 280. 



Kant, i. 24; asserted the relativity a 

 knowledge, i. 48 ; his inconsistency, L 

 62, 118 ; reconciliation cf his pbii» 



