412 



INDEX. 



SELBORNE. 



young petrel's crops at St. Kilda, ii. 

 147, 148 ; vitality of, ii. 65. 



Selborne, visit to, ii. 67. 



Selection, artificial, ii. 122; natural, 

 ii. 123, 128 ; influence of, i. 83 ; 

 influence of, upon the aristocracy, 

 ii. 385 ; iii. 91. 



, natural, ii. 87. 



, sexual, iii. 92, 94 ; iii. 156, 157 ; 



in lower animals, iii. 1 1 1 ; in insects, 

 iii. 137, 138; in Lepidoptera, iii. 150; 

 influence of, upon races of man, iii. 

 90, 95, 96. 



Semper, Professor Karl, letters to, on 

 the influence of isolation in the pro- 

 duction of species, iii. 160 ; on coral 

 reefs, iii. 182 ; on variability in 

 plants, iii. 344. 



Servia, new society in, iii. 117. 



Seward, Miss, calumnies of Erasmus 

 Darwin by, iii. 219. 



Sex in plants, establishment of the idea 

 of, iii. 256. 



Sexes more often separated in lower 

 than in higher plants, iii. 304. 



Sexual characters, inheritance of, iii. 

 123. 



characters, secondary, iii. ill. 



characteristics of British aqua- 

 tic and terrestrial plants, iii. 304. 



• differences, iii. 135. 



selection, iii. 92, 94, 157 ; 



influence of, upon races of man, iii. 



90, 95, 96 ; in Lepidoptera, iii. 150; 



in lower animals, iii. 1 1 1 ; colour in 



insects, acquired by, iii. 137 ; musical 



instruments in insects, acquired by, 



iii. 138. 

 Sexuality, origin of, iii. 289, 294. 

 Seychelles, ii. 76, 94. 

 Shakespeare readings, i. 170. 

 Shanklin, ii. 134. 

 Shivering, iii. 142. 

 Shooting, fondness for, i. 34, 56. 

 Shrewsbury, schools at, i. 27, 30 ; 



return to, i. 269, 273 ; early medical 



practice at, i. 37. 

 Shrubs, tendency of, to separation of 



sexes, ii. 89. 

 Shuddering, iii. 142. 

 Siberia and North America, almost 



continuous in Pliocene times, ii. 135. 



SPECIES. 



Sigillaria, i. 356, 357, 358, 359. 

 ' Silas Marner,' iii. 40. 

 Silurian, plants in the, iii. 248. 



and carboniferous formations, 



amount of subsidence indicated by, 



J 1 . 77 ' 

 Simise, relation of man to the higher, 



iii. 162. 



Simon, Mr., Address to the Inter- 

 national Medical Congress, 1881, iii. 

 210. 



Sitta, iii. 118. 



Skeletons, ii. 47, 50. 



Slavery, i. 246, 248, 341. 



Slaves, sympathy with, iii. 199, 200. 



Sleep-movements of plants, iii. 330. 



Slowness of change, ii. 124. 



Slugs, destruction of seedlings by, ii. 



^ 9h 99- 



Smith, Rev. Sydney, meeting with, i. 



• 75- 

 Smoking, i. 121, 122. 



Snipe, first, i. 34. 



Snowdon, ascent of, i. 42. 



Snuff-taking, i. 121, 122. 



Socialism, asserted connexion of, with 

 the theory of Descent, iii. 236, 237. 



Societies, Degrees and Honours, List 

 of, iii. 373-376. 



Sociology, Herbert Spencer on, iii. 165. 



Solenostoma, iii. 122. 



Son, eldest, birth of, i. 300 ; observa- 

 tions on, i. 300. 



Song, importance of, in the Animal 

 Kingdom, iii. 97. 



South America, erratic boulders of, 

 paper on the, i. 70, 300. 



South America, publication of the 

 geological observations on, i. 326. 



South American Missionary Society, 

 iii. 127. 



Southampton, British - Association 

 Meeting at (1846), i. 351. 



, origin of the angular gravels 



near, iii. 213. 



Sparrow, House, sexual differences of 

 the, iii. 124. 



Species, accumulation of facts relating 

 to, i. 82-85, 298, 299, 301 ; checks 

 to the increase of, ii. 33 ; mutability 

 of, ii. 34; distribution of the, ot 

 widely represented genera, ii. 25 



