INDEX. 



419 



progenitors of man. i. 131 ; influence of; 

 on man, i. 145, 14S; limitation of the 

 principle, i. 14G; influence of, on social 

 animals, i. 149 ; Mv. Wallace on the limi- 

 tation of, by the influence of the mental 

 faculties in man, i. 1J)2 ; influence of. in 

 the progress of the United States, i. 172. 



Natural and sexual selection contrasted, 

 i. 269. 



Naulette, jaw from, largo size of the ca- 

 nines in, 1. 122. 



Nbandeethal skull, capacity of the, i. 

 140. 



Neck, proportion of, in soldiers and sailors, 

 i. 112. 



Necrophoru,% stridulation of, i. 367, 371. 



Nectarinia, young of, ii. 1S2. 



Nectarinia, nidiflcation of, ii. 101 ; moult- 

 ing of the, ii. 79. 



Negro, resemblance of a, to Europeans, in 

 mental characters, i. 273. 



Negeo-women, their kindness to Mungo 

 Park, i. 91. 



Negroes, character of, i. 208 ; lice of, i. 212 ; 

 blackness of, i. 216, ii. 365; variabiUty of, 

 1. 217, 218; immunity of, from yellow fe- 

 ver, i. 234; difference of, from Americans, 

 i. 238 ; disfigurements of the, ii. 282 ; col- 

 or of new-born children of, ii. 302 ; com- 

 parative beardlessness of, ii. 306; readily 

 become musicians, ii. 318; appreciation 

 of beauty of their women by, ii. 328, 330 ; 

 idea of beauty among, ii. 334; compres- 

 sion of the noss by some, ii. 335. 



Neolithic period, i. 176. 



Neomorpha, sexual ditferenco of the beak 

 in, ii. 37. 



Nephila, i. 323. 



Nests, made by fishes, ii. 19; decoration 

 of, by Humming-birds, ii. 107. 



Neumeistee, on a change of color in pig- 

 eons after several moultings, i. 234. 



NE0RATION, difference of in the two sexes 

 of some butterflies and hymcnopter.a, i. 

 837. 



Neueopteea, 1. 306, 350. 



Keurothemis^ dimorphism in, i. 352. 



New Zealand, expectation by the natives 

 of, of their extinction, i. 232 ; practice of 

 tattooing in, ii. 326; aversion of native* 

 of, to hairs on the face, ii. 332; pretty 

 girls engrossed by the chiefs in, ii. 352. 



Newton, A., on the throat-pouch of the 

 male bustard, ii. 55 ; on the difference be- 

 tween the females of two species of Oxy- 

 noius, ii. 184; on the habits of the phala- 

 rope, dotterel, and godwit, ii. 195. 



Newts, ii. 23. 



Nicholson, Dr., on the non-immunity of 

 dark Europeans from yellow fever, i. 236. 



Nictitating membrane, i. 23, 198. 



NiDiFicATioN, of fishes, ii. IS ; relation of, 

 to color, ii. 159, 165 ; of British birds, ii. 

 162. 



Night-heron, cries of the, ii. 48. 



Nightingale, arrival of the male before 

 the female, i. 251 ; object of the song of 

 the, ii. 49. 



Nightlngales, new mates found by, ii. 

 101. 



Night-jar. selection of a mate by the fo- 

 m.Tle, ii. Ill ; Australian, sexes of, ii. 197 ; 

 coloration of the, ii. 216. 



NiGiiT-jAES, noise made by some male, 

 with their wings, ii. 59 ; elongated feath- 

 ers in,ii. 69, 92. 



Nilghau, sexual diff'erences of color in the, 

 ii. 273. 



NiLssoN, Prof., on the resemblance of stone 

 arrow-heads from various places, i. 224 ; 

 on the development of the horns in the 

 reindeer, i. 279. 



Nipples, absence of, in Monotremata, i. 200. 



NiTZSCii, 0. L., on the down of birds, ii. 77. 



NOCT0.E, brightly colored beneath, i. 885. 



NocTuiD.E, coloration of, i. 382. 



NoRDMAUN, A., on Tetrao -urogalloides, ii. 

 96. 



Nomadic habits, imfavorable to human 

 progress, i. 160. 



Norway, numerical proportion of male and 

 female births in, i. 291. 



•Nose, resemblance of, in man and the apes, 

 i. 184 ; piercing and ornamentation of the, 

 ii. 325 ; flattening of the, Ii. 335 ; very flat, 

 not admired in negroes, ii. 333. 



NoTT and GUddon, on the features of Ea- 

 meses II., i. 209; on the features of 

 Amunoph III., i. 210; on skulls from 

 Brazilian caves, i. 210 ; on the immunity 

 of negroes and mulattoes from yellow fe- 

 ver, i. 234; on the deformation of the 

 skull among American tribes, ii. 336. 



NuDiBRANcu mollusca, bright colors of; i. 

 317. 



Numerals, Roman, i. 175. 



Nunemaya, natives of, bearded, ii. 307, 332 



O. 



Obedience, value of; i. 166. 



Observation, powers of, possessed by 

 birds, ii. 105. 



Occupations, sometimes a cause of dimin- 

 ished stature, i. Ill ; effect of, upon the 

 proportions of the body, i. 112. 



Ocelli, absence of, in female MutiUidse, i. 

 331. 



Ocelli of birds, formation and variability 

 of the, ii. 126. 



Ocelot, sexual differences in the coloring 

 of the, ii. 278. 



Ocijphaps lophotes, ii. 92. 



Odonata, i. 306. 



Odonestis potatoria, sexual difference of 

 color in, i. 386. 



Odor, coiTclation of; \vith color of skin, i. 

 239 ; emitted by snakes in the breeding- 

 season, ii. 23 ; of mammals, ii. 265. 



(Eeantlms nivalis, difference of color in 

 the sexes of, i. 351. 



Oidemia, ii. 216, 217. 



Olivier, on sounds produced by Pimelia 

 striata, i. 373. 



Omaloplia brunnea, stridulation of, i. 

 869. 



