5 6o 



INDEX. 



Religious views of Darwin, i. 274- 

 286; difficulties not created by 

 science, 556. 



Reminiscences of Darwin by Hook- 

 er, i. 380. 



Revelation, Darwin's disbelief in, i. 

 277. 



Reversion, Darwin on, 11. 421. 



Reymond, Du Bois-, letter to, ii. 401. 



Richmond, W. B., paints Darwin's 

 portrait, ii. 399. 



Ridley, C., letter to, ii. 411. 



Rivers, T., letter to, ii. 240. 



Robertson, G. Croom, letter to, ii. 

 410. 



Robertson, John, reviews the ' Ori- 

 gin of Species,' ii. 289. 



Rodwell, Rev. J. M., letter to, ii. 

 140. 



Rolleston, George, his ' Canons,' ii. 

 156. 



Roman Catholic church on evolu- 

 tion, ii. 326. 



Romanes, G. J., on Darwin's con- 

 scientiousness, ii. 237 ; letters to, 

 385, 386, 402, 419. 



Royal College of Physicians pre- 

 sents the Baly medal to Darwin, 

 ii. 401. 



Royal Society of Edinburgh elects 

 Darwin honorary member, ii. 218. 



Royer, Mile. Cle'mence, translates 

 the 'Origin of Species,' ii. 150, 

 179 ; publishes third French edi- 

 tion, 291. 



Rudimentary organs, ii. 9. 



Sabine, Gen., on the ' Origin of 

 Species,' ii. 213. 



Salter, J. W., his diagram of spiri- 

 fers, ii. 159; 'Sand-walk' de- 

 scribed, i. 93. 



Sanderson, J. Burdon, letter to, ii. 



495- 



Saporta, Marquis de, letter to, ii. 

 341,366,458. 



Schaaffhausen, H., claims to antici- 

 pate Darwin, ii. 103, 113. 



Scott, John, Darwin's estimate of, 

 ii. 474. 



Sedgwick, Rev. Adam, mentioned, 

 i. 47 ; ii. 305 ; on the ' Origin of 

 Species,' 42-45 ; his review of the 

 ' Origin of Species,' 91 ; criticises 

 the ' Origin of Species,' IQO ; on 



the imperfection of the geological 

 record, 161 note. 



Seeds, vitality of, i. 425. 



Selection, natural, ii. 6-8, 9, no, 

 III, 138, 206, 209, 210, 217 ; doc- 

 trine of, clearly conceived by Dar- 

 win about 1839, i. 71 ; opposed to 

 doctrine of design, 278 ; ii. 97 ; 

 effect of, on the scientific mind, i. 

 550 ; and religion, ii. 105, 131, 

 162-164, 245-248, 412 ; small ef- 

 fects of, in changing species, 

 128-130, 131-133 ; among the no- 

 bility, 177 ; Huxley's lectures to 

 workingmen on, 187 ; progress of- 

 187, 201, 312, 328, 332, 367 ; Dar, 

 win anticipated on, 225 ; use of 

 the term, 230 ; effect on sterility, 

 263 ; progress among the clergy, 

 291 ; progress of, in Germany, 270, 

 299 ; progress of, in France, 269, 

 299. 



Selection, sexual, n. 272, 274, 275, 

 276, 277, 292, 317, 330, 336 ; in- 

 stance of, in the dogs of Beyrout, 

 428. 



Semper, K., letters to, ii. 339, 360, 

 516. 



Shelburne, Lord, anecdote of, i. 14. 



Slavery, Darwin's opinion of, i, 309 ; 

 in the United States, ii. 166, 169, 

 177, 196. 



Smith, Sydney, inexplicably amus- 

 ing, i. 62. 



Socialism and the descent of man, 

 ii. 412. 



Societies, learned, Darwin's mem- 

 bership in, ii. 218, 544. 



South American Missionary Society, 

 Darwin's connection with, ii. 307. 



Species, mutability of, i. 389-393, 

 409 ; origin of, effect of isolation 

 on, ii. 334-341 ; specific centres, 

 i. 441. 



Spencer, Herbert, letters to, i. 497 ; 

 ii. 344 ; Prof. Huxley's friendship 

 with, i. 542 ; Darwin on, ii. 84, 

 152, 239, 301, 371 ; originates the 

 term ' survival of the fittest,' 229 ; 

 his impression of ' Pangenesis,' 

 260. 



Spiritism, Darwin on, ii. 364. 



Spontaneity, Bain's theory of, ii. 351. 



Sprengel, C. C., his work on the fer- 

 tilisation of flowers, ii. 432. 



