J'SO INDEX. 



St. John, Mr., on the attacliraent of mated birds, 466. 



St. Kilda, beards of the inhabitants of, 638. 



Siilmo eriox and S. umbla, coloring of the male, during the breed- 

 ing-season, 386. 



Halmo lycaodoii, 378; 8<ilmo solar, 377. 



Salmon, leaping out of fresh water, 122; male, ready to breed 

 before the female, 240; proportion of the sexes in, 282; male, pug- 

 nacity of the, 377; male, characters of, during the breeding-season, 

 377, 386; spawning of the, 390; breeding of immature male, 552. 



Salvin, O., inheritance of mutilated feathers, 67, 436, 689; on the 

 humming-birds, 248, 516; on the numerical proportion of the sexes 

 in humming-birds, 281, 555; on Chamo'petes and Penelope, 429; on 

 Selaspharus platycercus, 429; Pipra deliciosa, 429; on (Jhasmorhyn- 

 chus, 442. 



Samoa Islands, beardlessness of the natives of, 639, 663. 



Sandhoppers, claspers of male, 307. 



Sand-skipper, 305. 



Sandwich Islands, variation in the skulls of the natives of the^ 29; 

 decrease of native population, 211; population of, 290; superiority of 

 the nobles in the, 669; Islanders, lice of, 193. 



San-Giuliano, women of, 670. 



Santali, recent rapid increase of the, 51; Mr. Hunter on the, 218. 



Saphirina, characters of the males of, 306. 



Sarkidiornis irielanonotus, characters of the young, 529. 



Sars, O., on Pontoporeia affinis, 300. 



Saturnia carpitii, attraction of males by the female, 284; saturnia 

 lo, difference of coloration in the sexes of, 358. 



Saturniidm, coloration of the, 356, 358. 



Savage, Dr., on the fighting of the male gorillas, 641; on the habits 

 of the gorilla, 675. 



Savage and Wyman on the polygamous habits of the gorilla, 246. 



Savages, uniformity of, exaggerated, 32; long-sighted, 37; rate of 

 increase among, usually small, 50; retention of the prehensile power 

 of the feet by, 58; imitative faculties of, 98, 146; causes of low 

 morality of, 135; tribes of, supplanting one another, 145; improve- 

 ments in the arts among, 164; arts of, 203; fondness of, for rough 

 music, 431; on long-enduring fashions among, 563; attention paid 

 by, to personal appearance, 654; relation of the sexes among, 675. 



Saviotti, Dr., division of malar bone, 44. 



Saw-fly, pugnacity of a male, 330. 



Saw-llies, proportions of the sexes in, 286. 



Saxicola rubicola, young of, 555. 



Scalp, motion of the, 14. 



Scent-glands in snakes, 399. 



Schaaffhausen, Prof., on the development of the posterior molars 

 in different races of man, 22; on the jaw from La Naulette, 46; on 

 the correlation between muscularity and prominent supraorbital 

 ridges, 49; on the mastoid processes of man, 59; on modifications of 

 the cranial bones, 62; on human sacrifices, 163; on the probable 

 speedy extermination of the anthropomorphous apes, 178; on the 

 ancient inhal)itants of Europe, 207; on the effects of use and disuse 

 of ])arts, 225, on the superciliary ridge in man, 634; on the absence 

 of race differences in the infant skull in man, 635; on ugliness, 666. 



