INDEX. 



437 



Uobbs s parallelism of society and 

 the human body, 307. 



Homogeneous, change of to hetero 

 geneous, 3; seen in genesis of 

 solar system, 3 ; in phenomena 

 of earth s crust, 5 ; in the ad 

 vance of life in general, 7 ; in the 

 progress of man, 10 ; in growth 

 of civilization, 12 ; in govern 

 ment, 13 ; in language, 17 ; in 

 painting and sculpture, 20 ; in 

 poetry, music, and dancing, 24 ; 

 causo of this universal change, 



oo 



llutton s geological system, 315 ; 



contrast of the modern with, 318. 

 Ilydni compared with primitive 



tribes, 389, 395, 400, 408. 

 Hydrozoa, analogies of, 389, 391, 



400. 



Industrial organization, 373. 



Industrial arrangements, develop 

 ment of compared with that of 

 the alimentary organs, 3i)8. 



Insensible modifications effect great 

 changes, 307 ; illustrated by geo 

 metrical curves, 300 ; by phy bio 

 logical development, 370. 



X 



King s councils compared to gan 

 glia, 409, 411. 



Knowledge, experience the source 

 of all, 120; relations of various 

 kinds of, 107. 



Language, differentiation of ; 17 j 

 origin of written, 18 ;_ origin ot 

 verbal, 149 ; origin of emotional, 

 220. 



La Place s theory of planetary evo 

 lution, 203-205. 



Laughter, common explanations of, 

 1 94 ; movements in, 200 ; groups 

 of muscles successively affected 

 in, 201 ; caused by incongruities, 

 203 ; facilitates digestion, 207. 



Law, origin of, 70. 



Likeness and unlikeness, recogni 



tion of. the basis of classification, 



147 ; the basis of language, 149 ; 



of reasoning, 150 ; of art, 151 ; 



leads to science, 152. 

 Logic, how evolved, 158. 

 Lyell, Sir Charles, criticism upon, 



320, 330. 



M 



Man, progress of, 10. 



Manners, genesis of, 77 ; decline of 

 the influence of, 89 ; conformity in 

 manners leads to extravagance, 

 99 ; conformity in, decreases so 

 cial intercourse, 100 ; defeats the 

 true end of social life, 102, 107. 



Mathematics, how evolved, 158. 



Mechanics, rise of science of, 108. 



Mineral qualities of rocks untrust 

 worthy tests of ago or position, 

 320. 



Miller, Hugh, estimate of, 340. 



Motion of nebulous matter, 251- 

 253. 



Morality, origin of, 70. 



Muscular movements, cause of, 195; 

 arrested by feeling, 199; in laugh 

 ter purposeless, 201 ; of animals 

 when excited, 211 j variations of, 

 produce changes ot voice, 214. 



Music, increasing heterogeneity of, 

 20 ; relation of mental to muscu 

 lar excitement, the source of, 214 ; 

 theory of, 221-224 ; its history 

 confirms the theory, 224-228 ; 

 negative proof of theory of, 228- 

 231. 



Murchison, Sir E. I., criticism upon 

 his &quot; Siluria,&quot; 320, 328, 351, 354. 



N 



Nebula, are they parts of our side 

 real system 3 &quot;243, 249 ; condensa 

 tion of, 250 ; motion in, 251 ; sig 

 nificance of forms of, 254 ; struc 

 ture of spiral, 254. 



Nebular hypothesis, 3, 34; its high 

 derivation, 239 ; it explains comct- 

 ary phenomena, 202. 



Negative facts in geology, small 

 value of, 300-303. 



Nervous system, effects of excite 

 ment inj 195; directions of dis 

 charge of excitement in, 197 ; 



