462 



SCOLYTUS. 



INDEX. 



SEXUAL. 



Scolytus, stridulation of, i. 379. 

 Scoter-duck, black, sexual difference 



in coloration of the, ii, 226; bright 



beak of male, ii. 227. 

 Scott, J., on the colour of the beard 



in man, ii. 319. 

 SCROPE, on the pugnacity of the male 



salmon, ii. 3 ; on the battles of 



stags, ii. 240. 

 ScuDDER, S. H., imitation of the 



stridulation of the Orthoptera, i. 



353 ; on the stridulation of the 



Acridiidse, i. 356 ; on a Devonian 



insect, i. 360 ; on stridulation, ii. 



>oi. 



Sculpture, expression of the ideal of 

 beauty by, ii. 350. 



Sea-anemonies, bright colours of, i. 

 322. 



Sea-bear, polygamous, i. 268. 



Sea-elephant, male, structure of 

 the nose of the, ii. 278 ; polyga- 

 mous, i. 268. 



Sea-lion, polygamous, i. 268. 



Seal, bladder-nose, ii. 278. 



Seals, their sentinels generally fe- 

 males, i. 74 ; evidence furnished by, 

 on classification, i. 190; sexual dif- 

 ferences in the coloration of, ii. 

 287 ; appreciation of music by, ii. 

 333 ; battles of male, ii. 240 ; ca- 

 nine teeth of male, ii. 241 ; poly- 

 gamous habits of, i. 268 ; pairing 

 of, ii. 269 ; sexual peculiarities of, 

 ii. 277. 



Sea-scorpion, sexual differences in, 

 ii. 9. 



Season, changes of colour in birds, in 

 accordance with the, ii. 80 ; changes 

 of plumage of birds in relation to, 

 ii. 180. 



Seasons, inheritance at correspond- 

 ing, i. 282. 



Sebituani, ii. 340. 



Sebright Bantam, i. 294. 



Secondary sexual charactei-s, i. 253 ; 

 I'elations of polygamy to, i. 266 ; 

 gradation of, in birds, ii. 135 ; 

 transmitted through both sexes, i. 

 279. 



Sedgwick, W., on hereditary ten- 

 dency to produce twins, i. 133. 



Seemann, Dr., on the different appre- 

 ciation of music by different peo- 



ples, ii. 334; on the effects of 



music, ii. 335. 

 Selasphorus platycercus, acuminate 



first primary of the male, ii. 65. 

 Selby, p. J., on the habits of the 



black and red grouse, i. 269. 

 Selection, double, i. 276. 

 Selection of male by female birds, 



ii. 99, 122. 

 Selection, methodical, of Prussian 



grenadiers, i. 112. 

 Selection, sexual, influence of, on 



the coloui'ing of Lepidoptera, i. 



403 ; explanation of, i. 256, 260, 



271. 

 Selection, sexual and natural, con- 

 trasted, i. 278. 

 Self-command, habit of, inherited, 



i. 92 ; estimation of, i. 95. 

 Self-consciousness, i. 62. 

 Self-preservation, instinct of, i. 



89. 

 Self-sacrifice, by savages, i. 88; 



estimation of, i. 95. 

 Semilunar fold, i, 23. 

 Semnopithecus, i. 197 ; long hair on 



the heads of species of, i. 192 ; ii. 



380. 

 Semnopithecus chrysomelas, sexual dif- 

 ferences of colour in ii. 291. 

 Semnopithecus comatus, ornamental 



hair on the head of, ii. 307. 

 Semnopithecus frontatus, beard, &c., 



of, ii. 308. 

 Semnopithecus nasica, nose of, i. 



192. 

 Seinnopithecus 7iemxus, colouring of, 



ii. 310. 

 Semnopithecus ruhicundus, ornamen- 

 tal hair on the head of, ii. 306. 

 Senses, inferiority of Europeans to 



savages in the, i. 118. 

 Sentinels, i. 74, 82. 

 Serpents, instinctively dreaded by 



apes and monkeys, i. 37, 42. 

 Serranus, hermaphroditism in i. 208. 

 Sex, inheritance limited by, i. 282. 

 Sexes, relative proportions of, in 



man, i. 300, ii. 320 ; probable re- 

 lation of the, in primeval man, 



ii. 362. 

 Sexual charactei's, secondary, i. 253 ; 



relations of polygamy to, i. 266 ; 



transmitted through both sexes. 



