520 



INDEX. 



aet'ons are sometimes ^deasurable, ii. 



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

 Political economy, a deductive science, 



i. iia. 



Polytheism, L 168. 



Positive Polity, utter failure of, ii. 489 ; 

 its retrograde cha-acter, ii. 494. 



Positivism, its relations with idealism, 

 i. 74 — S3; an imjiracdc-able philo ophy, 

 i. 175 ; current disposition to identify 

 ail scientific philosophy with it, i. 255 ; 

 five fundamental pioiositions of, i. 

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

 145,175,184,26.3. 



Post hoc erqo propter hoc, i. 150. 



Power, our notion of, whence derived, 

 i. 156. 



Pi-ayer 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, L 456. 



Prehension and intelligence, ii. 309. 



Prevision, quantitative and qualitative, 

 1. 33 ; in sociology, IL 169. 



Primitive men, their unprogressiveness, 

 a. 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 

 stUl the prime phenomenon to be in- 

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

 its fumiamental characteristic, ii. 201 ; 

 its root in the exercise of the conjugal 

 and parental feelings, ii. 203 ; ileter- 

 mined by increasing heterogeneity of 

 environment, ii. 213 ; why more r pid in 

 modem 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. 



Proti.sts, 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 up 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. 194 ; 

 twoioid division of, i. 221 ; wherein 

 different from biology, ii. 76 ; problem 

 of, ii. 7S ; 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, u. 2iy. 



Pyrrhonism, i. 23. 



Rainbows, why explained before comets, 



i. 210. 

 Realism, i. 67. 

 Reason, how evolved from instinct, 15. 



154. 

 Reasoning involves classification, i. 31 ; 



ii. 106 ; quantitative and qualitative, 



ii. 102. 

 Reconciliation between Kant and Hume, 



i. 72.149; ii. 160. 

 Redi, his panegyric on wine, i. 412 ; his 



experiments on decaying meat, i. 419. 

 Redox action, ii. 149. 

 Reid, i. 77—79. 

 Relational and nutritive systems of 



organs, ii. 86. 

 Relations, equality of, ii. 100 ; of animals 



in time, i 4.J2. 

 Relative tnith, criterion of, i. 71. 

 Relativity, canon of. i. 10 ; full meaning 



of the doctrine, i. 91. 

 Religion not antacronistic to science, i. 



184; its relations to moraiitv, Li. 357, 



465 ; of Humanity, how reached by 



Comte, i. 261 ; ii. 417. 

 Reliirions of antiquity, their function, ii. 



26G. 

 Repentance cannot ward off piinishment, 



ii. 455. 

 Representativeness, its importance as an 



intellectual faculty, ii. 5iz. 

 Retina, structure of, ii. 62. 

 Reversion of domesticated animals to- 

 ward wild type, ii. 13. 

 Revolution of 1789, ii. 4S0. 

 Rhythm of motion, i. 2J7— 313. 

 Right and wrong, how different from 



pleasure and pain, ii. 337. 

 Ring of the asteroids perturbed by 



Jupi'er, i. 370. 

 Itings doiached from solar nebula, i. 361; 



hoop -shaped and quoit-. "shaped, i. 



365. 

 Robespierre, ii. 482, 485. 

 Roman church, gi-andeur of its\\o. o', ii 



219. 



