520 



INDEX. 



actions are sometimes pleasurable, ii. 

 333. 



Polarity, i. 290; physiological, ii. 57. 



Political economy, a deductive science, 

 i 113. 



Polytheism, i. 168. 



Positive Polity, utter failure of, ii. 489 ; 

 its retrograde cha acter, ii. 494. 



Positivism^ its relat.ons with idealism, 

 i. 7483; an impracticable philo&quot;0phy, 

 i. 175; current disposition to identify 

 all scientific philosophy with it, i. 255 ; 

 five fundamental propositions of, i. 

 257 ; antagonistic to Cosmism,i. 93,94, 

 145,175, 184, 263. 



Post hoc ergo proptcr hoc, i. 150. 



Power, our notion of, whence derived, 

 i. 156. 



Prayer cannot ward off the effects of 

 wrong-doing, ii. 464. 



Precession, i. 303. 



Prediction in science, i. 33. 



Pre-established Harmony, i. 24, 129, 158. 



Preformation, theory of, i. 456. 



Prehension and intelligence, ii. 309. 



Prevision, quantitative and qualitative, 

 i. 33 ; in sociology, ii. 169. 



Primitive men, their unprogressiveness, 

 H. 291. 



Primitive religion, ii. 458. 



Primitive state of high civilization, 

 theory of, ii. 264. 



Proctor, R.,i. 374, 378, 380. 



Progress, habitually misunderstood, ii. 

 193 ; not universal, ii. 195, 255 ; yet 

 still the prime phenomenon to be in 

 vestigated, ii. 196 ; factors of, ii. 197 ; 

 its fundamental characteristic, ii. 201 ; 

 its root in the exercise of the conjugal 

 and parental feelings, ii. 203 ; deter 

 mined by increasing heterogeneity of 

 environment, ii. 213 ; why more r &amp;lt;pid in 

 modern than in ancient times, ii. 214 ; 

 law of, ii. 223 ; Comte s theory of, ii. 

 240 ; moral and intellectual elements 

 in, ii. 241 ; why some people do not 

 advance, ii. 256 283 ; inconspicuous in 

 lower races of men, ii. 289. 



Proklos, his divine light, i. 23, 125. 



Protective spirit, ii. 231. 



Protists, Haeckel s Kingdom of, i. 450. 



Providence, mediaeval notion of, ii. 381. 



Psychical phenomena can never be re 

 solved into motions of matter, ii. 442. 



Psychical states built xip out of sub- 

 psychical states, ii. 123 ; cohere less 

 strongly as they increase in com 

 plexity, ii. 153. 



Psychogeny, L 221. 



Psychology, rejected by Comte, i. 104 ; 

 two;oid division of, i. 221; wherein 

 different from biology, ii. 76 ; problem 

 of, ii. 7$ ; its claims to rank as a pri 

 mary science, ii. 80 ; its dependence on 

 biology, ii. 82. 



Pterodactyl and birds, ii. 51 53. 



Punic wars compared with the war of 

 secession , :i. 249. 



Pyrrhonism, i. 23. 



RAINBOWS, why explained before comets, 



i. 210. 



Realism,!. 67. 

 Reason, how evolved from instinct, ii. 



154. 

 Reasoning involves classification, i. 31 ; 



ii. 1C6 ; quantitative and qualitative, 



ii. 102. 

 Reconciliation between Kant and Hume, 



i. 72, 149 ; ii. 160. 

 Redi, his panegyi-ic on wine, i. 412 ; his 



experiments on decaying meat, i. 419. 

 Reflex action, ii. 149. 

 Reid, i. 7779. 

 Relational and nutritive systems of 



organs, ii. 86. 

 Relat-ons, equality of, ii. 100 ; of animals 



in time, i 452. 



Relative truth, criterion of, i. 71. 

 Relativity, canon of, i. 10 ; full meaning 



of the doctrine, i. 91. 

 Religion not antagonistic to science, i. 



184; its relations to morality, ii. 357, 



465 ; of Humanity, how reached by 



Comte, i. 261 ; ii. 417. 

 Religions of antiquity, their function, ii. 



266. 

 Repentance cannot ward off punishment, 



ii. 455. 

 Representativeness, its importance as an 



intellectual faculty, ii. 3i2. 

 &quot;Retina, structure of, ii. 62. 

 Reversion of domesticated animals to 

 ward wild type, ii. 13. 

 Revolution of 1789, ii. 480. 

 Rhythm of motion, i. 2.)7 313. 

 Right and wrong, how different from 



pleasure and pain, ii. 337. 

 Ring of the asteroids perturbed by 



Jupiter, i. 370. 

 Rings detached from solar nebula, i. 361, 



hoop -shaped and quoit - shaped, i, 



365. 



Robespierre, ii. 48?, 485. 

 Roman church, grandeur of its wort, ii 



219. 



