740 INDEX. 



using a fan, 91 ; Indian, forbearance to liis keeper, 117; polygamous 

 habits of the, 246; pugnacity of the male, 571; tusks of, 572, 573, 

 578, 587; Indian, mode of fighting, of the, 585; male, odor emitted 

 by the, 604; attacking white or grey horses, 617. 



Elevation of abode, modifying iniiuence of, 39. 



Elimination of inferior individuals, 155. 



Elk, 579; winter change of the, 619; Irish, horns of the, 587. 



EUice Islands, beards of the natives, 639, 663. 



Elliot, D. G., on Pelecanus erythrorhynchus, 442; R.,on the nu- 

 merical proportion of the sexes in young rats, 279; on the proportion 

 of the sexes in sheep, 278; Sir W. on the polygamous habits of the 

 Indian wild boar, 246. 



Ellis, on the prevalence of infanticide in Polynesia, 676. 



Elphinstone, Mr., on local difference of stature among the Hindoes, 

 35; on the difficulty of distinguishing the native races of India, 190. 



Elytra, of the females of Dytiscus, AcUius.IIydroporus, 313. 



Emberiza, characters of young, 529; Emberiza miliaria, 529; 

 Emberiza schmniclu<i, 468; head-feathers of the male, 455. 



Embryo of man, 10, 11; of the dog, 11. 



Embryos of mammals, resemblance of the, 28. 



Emigration, 155. 



Emotions experienced by the lower animals in common with man, 

 77; manifested by animals, 80. 



Emperor butterfly, 348. 



Emperor moth, 358. 



Emu, sexes and incubation of, 545. 



Emulation of singing birds, 419. 



Endurance, estimation of, 134. 



Energy, a characteristic of men, 645. 



England, numerical proportion of male and female births in, 274. 



Engleheart, Mr., on the finding of new mates by starlings, 464. 



English, success of, as colonists, 160. 



Engravers, short-sighted, 37. 



Entomostraca, 304. 



Entozoa, difference of color between the males and females of 

 some, 294. 



Environment, direct action of the, in causing differences between 

 the sexes, 254. 



Envy, persistence of , 127. 



Eocene period, possible divergence of men during the, 177. 



Eolidae, colors of, produced by the biliary glands, 296. 



Epeira nigra, small size of the male of, 308. 



Ephemerae, 311. 



Ephemeridae, 328. 



Ephippiger vitium, stridulating organs of, 322, 326. 



Epicalia, sexual differences of coloring in the species of, 350. 



Equus hemionus, winter change of, 619. 



Erateina, coloration of, 357. 



Ercolani, Prof., hermaphroditism in eels, 184. 



Erect attitude of man, 57, 58. 



Eristalis, courting of 318. 



Eschricht, on the development of hair in man, 20; on a lanuginous 

 mustache in a female fetus, 21 ; on the want of definition between 



