632 



INDEX. 



Dytiscus, dimorphism of females 

 of, 273; grooved elytra of the fe- 

 male, 273. 



E 



Eagle, young Cercopithecus res- 

 cued from, by the troop, 98. 



, white-headed, breeding in 



immature plumage, 479. 



Eagles, golden, new mates found 

 by, 403. 



Ear, motion of the, 13; external 

 shell of the, useless in man, 14; 

 rudimentary point of the, in 

 man, 14. 



Ears, more variable in men than 

 women, 219; piercing and orna- 

 mentation of the, 570. 



Earwigs, parental feeling in, 102. 



Echidna, 152. 



Echini, bright colora of some, 257. 



Echinodermata, absence of sec- 

 ondary sexual characters in, 257. 



Bchis carinata, 349. 



Ecker, figure of the human em- 

 bryo, 10; on the development of 

 the gyri and sulci of the brain, 

 201; on the sexual differences in 

 the pelvis in man, 552; on the 

 presence of a sagittal crest in 

 Australians, 553. 



Edentata, former wide range of, 

 in America, 165; absence of sec- 

 ondary sexual characters in, 214. 



Edolius, racket-shaped feathers 

 in, 379. 



Edwards, Mr., on the proportion 

 of the sexes in North American 

 species of Papilio, 246. 



Eels, hermaphroditism of, 157. 



Egerton, Sir P., on tlie use of the 

 antlers of deer, 506; on the pair- 

 ing of red deer, 518; on the bel- 

 lowing of stags, 521. 



Eggs, hatched by male fishes, 341. 



Egret, Indian, sexes and young 

 of, 481. 



Egrets, breeding plumage of, 385; 

 white, 488. 



Ehrenberg, on the mane of the 

 male Hamadryas baboon, 517. 



Ekstrom, M., on Harelda glacial- 

 is, 415. 



Elachista rufocinerea, habits of 

 male, 248. 



Eland, development of the horns 

 of the, 229. 



Elands, sexual differences of color 

 in, 531. 



Elaphomyla, sexual differences in, 

 277. 



Blaphrus uliginosus, stridulation 

 of, '300. 



Elaps, 349. 



Elateridte, proportions of the 

 sexes in, 249. 



Blaters, luminous, 275. 



Elephant, 152; rate of Increase of 

 the, 45; nakedness of the, 55; In- 

 dian, forbearance to his keeper, 

 101; polygamous habits of the, 

 213; pugnacity of the male, 497; 

 tusks of, 498, 499, 503, 510; In- 

 dian, mode of fighting of the, 

 509; male, odor emitted by the, 

 524; attacking white or gray 

 horses, 535. 



Elevation of abode, modifying in- 

 fluence of, 33. 



Elimination of inferior individu- 

 als, 133. 



Elk, 503; winter change of the, 

 537. 



, Irish, horns of the, 511. 



BUice Islands, beards of the na- 

 tives, 555, 575. 



Elliot, R., on the numerical pro- 

 portion of the sexes in young 

 rats, 241; on the proportion of 

 the sexes in sheep, 241. 



, D. G., on Pelecanus ery- 



throrhynchus, 384. 



, Sir W., on the polygamous 



habits of the Indian wild boar, 

 213. 



Ellis, on the prevalence of infan- 

 ticide in Polynesia, 586. 



Elphinstone, Mr., on local differ- 

 ences of stature among the Hin- 

 doos, 30; on the dilHculty of dis- 

 tinguishing the native races of 

 India, 163. 



Elytra, of the females of Dytis- 

 cus, Acilius, Hydroporus, 273. 



Emberiza, characters of young, 

 459. 



miliaria, 459. 



schcenicius, 407; head-feath- 

 ers of the male, 396. 



Embryo of man, 9, 10; of the dog, 

 10. 



Embryos of mammals, resem- 

 blance of the, 24. 



Emigration, 133. 



Emotions experienced by the 

 lower animals in common with 

 man, 67; manifested by animals, 

 69. 



Emperor moth, 312. 



Emulation of singing-birds, 364. 



Emu, sexes and incubation of, 

 472. 



Endurance, estimation of, 115. 



Energy, a characteristic of men, 

 559. 



England, numerical proportion of 

 male and female births in, 237. 



Engleheart, Mr., on the finding 

 of new mates by starlings, 493. 



English, success of, as colonists, 

 138. 



Engravers, short-sighted, 32. 



Entomostraca, 265. 



Entozoa, difference of color be- 

 tween the males and females of 

 some, 257. 

 '-'ivy, persistence of, 109. 



