396 Jndr.r. 



Herschel, Sir John, his theory ol tlie himinoiis sun-spots, Go; of the I'orui of 

 the universe, C7-tl8. 



?Ioll)rook, Dr. Martin L., on vegetal evohition, \',iT>. 



Homology, in animal evolution, 2;il-2!t2. 



Hooker, i)r., on Herbert Spencer,!); liis relation to Darwin's Origin of Spe- 

 cies, 30. 



Horse, tlje evolution of, 38, OS-lon. 2ti2. 



Humboldt, William von, his ))olitical ])hilosophy compared with Herbert 

 Spencer's, 14. 



Hume, David, 343. 



Huxley, Prof. Thomas H., his defence of Darwin, 40; on the influence of the 

 Origin of Species, 42; on Darwin's honesty, 44-45; on the proof of bio- 

 logical evohition, KIO; on organic and inorganic substance, 118; on 

 micro-organisms. Ill) ; on bathybius, 11'.); evolution no longer an h\i)oth- 

 esis, 304; on mind and matter, 350, 3UG. 



iGXEoi's TtocKs, the formation of, 93. 



Immortality, evolution's word concerning, 334-330, 338. 



Industrial evolution, 374-375. 



Infertility of species, 149, 151-153, 155. 



lntuiti(m'al philosophv, 349. 



Island life, illustrative of evolution, 98, 15G, 301-.302. 



James, Pkof. William, on mental evolution, 185. 



Janes, Dr. Lewis G., on the philosophical aspects of cosmic evolution, 74; on 

 the evolution of the earth, 79-103; on the laws of organic and inorganic 

 growth, 13G; on the law of population, 172; on mental evolution, 197; on 

 Spencer's theory of government, 230 ; on the personality of the Absolute, 

 253 ; on the evolution of morals, 257-280, 283-284, 319-33G ; on Spencer's " I^n- 

 knowable," 339-340; on the philosophy of evolution, 3G5. 



Japan, evolution in, 50. 



Judaism, as related to evolution, 244-245, 252; as related to Christianity, 246, 

 339-340. 



Kant, Emanuel, his conception of the ding an slch, 182; on the moral law, 

 205 ; on good and evil, 273 ; on the will, 277 ; the evolution-philosophy not 

 derived from him, 343; his Critique of J'vre lieason, 343, 34G. 



Kennan, George, his testimony as to Speiicer's wTitings in Siberia, G. 



Krakatoa, the volcano of, 94. 



Lamarck, anticipated by Dr. Erasmus Darwin, 20; his advocacy of evolution, 

 32; his theory of use as all'cctiiig development, 149-150, 155; imjiortance of 

 his hypothesis, 1G4; its correctness, 105; its revival by Prof . Cope, 174; a 

 forerunner of the evolution philosopliy, 343. 



Language, its brain-convolution found in "anthropoid apes, 102 ; evidences that 

 primitive man was deficient in sjieech, 104; its evolution, 202, 2G4, 303 j it 

 differentiates man from the lower animals, 202, 312; the connecting link 

 between mind and matter, 303-304. 



Laplace, his theory of solar and planetary evohition, 56-60; rejected in part 

 by Faye, 62 ; the theory not wholly .satisfactory, 71 ; objections to it, 73 ; a 

 forerunner of evolution, 343. 



Law of conduct, as formulated by the evolution philosophy, 272. 



Laws, natural and divine, 133. 



Laws of evolution, 141, ct seq. 



Le Conte, Prof. Josejih, on the subsidence of the earth's crust, 93; on geolog- 

 ical evolution 95-90 ; on the effect of astronomical and geological studies, 

 102-103; on spontaneous generation, 140; his detinition of cMilution, 141; 

 his formulation of its laws, 141 ; his judgment of Koniaucs' theory, 151 ; on 

 the influence of natural and sexual selection, 290 ; on artilicial and natural 

 selection, 300 ; on spirit immortality, 330. 



Leibniz, his doctrine of pre-existeiu'C, 275. 



Lewes, George Henry, on the spinal cord as a seat of consciousness, 193; on 

 the interdependence of organic and mental forces, 363. 



Linna'us, Darwin's acquaintance with his system, 26; his basis of classifica- 

 tion, 36. 



Locke, John, 343. 



Looking liackward, 371-372, 388. 



Lr)tze, Herman, his doctrine of pre-existence, 275. 



L(pvcs of the riaiits, 26. 



Lulil M )ck, Sir J( ibn, on the intelligence of the ant, 172 ; on ancestor-worship, 235. 



Lyell, Sir Charles, compared with Darwin, 29; his doctrine of continuity, 30; 

 his relation to the Origin of Species, 30; his endorsement of Darwin, 40; 



