650 



INDEX. 



Monkeys, liability of, to the same 

 diseases as man, 7; male, recog- 

 nition of women by, 8; diversity 

 of the mental faculties in, 26; 

 breaking hard fruits with 

 stones, 49; hands of the, 48, 49; 

 basal caudal vertebrae of. im- 

 bedded in the body, 57; revenge 

 taken by, 67; maternal affection 

 in, 68; variability of the faculty 

 of attention in, 71; American, 

 manifestation of reason in, 75; 

 using stones and sticks, 79; imi- 

 tative faculties of, 85; signal- 

 cries of, 85; mutual kindnesses 

 of, 98; sentinels posted by, 97; 

 human characters of, 146; Amer- 

 ican, direction of the hair on the 

 arms of some, 147; gradation of 

 species of, 171; beards of, 526; 

 ornamental characters of, 543; 

 analogy of sexual differences of, 

 with those of man, 553; different 

 degrees of difference in the 

 sexes of, 556; expression of emo- 

 tions by, 566; generally monog- 

 amous habits of, 685; polyga- 

 mous habits of some, 685; naked 

 surfaces of, 695. 



Monogamy, not primitiye, 140. 



Monogenists, 171. 



Mononychus pseudacori, stridula- 

 tion of, 302. 



Monotremata, 153; development of 

 the nictitating membrane in, 17; 

 lactiferous glands of, 158; con- 

 necting mammals with reptiles, 

 160. 



Monstrosities, analogous, in man 

 and lower animals, 29; caused 

 by arrest of development, 34; 

 correlation of, 42; transmission 

 of, 169. 



Montagu, G., on the habits of the 

 black and red grouse, 215; on 

 the pugnacity of the ruff, 358; 

 on the singing of birds, 364; on 

 the double moult of the male 

 pintail, 387. 



Monteiro, Mr., on Bucorax abys- 

 sinicus, 377. 



Montes de Oca, M., on the pug- 

 nacity of male Humming-birds, 

 356. 



Monticola cyanea, 450. 



Monuments, as traces of extinct 

 tribes, 177. 



Moose, battles of, 497; horns of 

 the, an incumbrance, 510. 



Moral and instinctive impulses, al- 

 liance of. 108. 



faculties, their Influence on 



natural selection in man, 124. 



rules, distinction between 



the higher and lower, 118. 



sense, so-called, derived 



from the social Instincts, 117; 

 origin of the, 120. 



tendencies, inheritance of, 



120. 



Morality, supposed to be founded 

 in selfishness 116; test of, the 

 general welfare of the com- 

 munity, 118; gradual rise of, 121; 

 influence of a high standard of, 

 129. 



Morgan, L. H., on the beaver, 65; 

 on the reasoning powers of the 

 beaver, 73; on the forcible cap- 

 ture of wives, 140; on the cas- 

 toreum of the beaver, 524; mar- 

 riage unknown in primeval 

 times, 582; on polyandry, 587. 



Morley, J., on the appreciation of 

 praise and fear of blame, 139. 



Morris, F. O., on hawks feeding 

 an orphan nestling, 404. 



Morse, Dr., colors of mollusca, 

 260. 



Morselli, B., division of the malar 

 bone, 37. 



Mortality, comparative, of fe- 

 males and males, 212, 238. 



Morton, on the number of species 

 of man, 170. 



Moschkau, Dr. A., on a speaking 

 starling, 83. 



Moschus moschiferus, odoriferous 

 organs of, 525. 



Motacillae, Indian, young of, 463. 



Moths, 310; absence of mouth in 

 •some males, 204^ apterous fe- 

 male, 204; male, prehensile use 

 of the tarsi by, 205; male, at- 

 tracted by females, 247; colora- 

 tion of, 312; sexual differences 

 of color in, 312. 



Motmot, inheritance of mutilation 

 of tall feathers, 57, 697; racket- 

 shaped feathers In the tail of a, 

 380. 



Moult, double, 456; double annu- 

 al, in birds, 385. 



Moulting of birds, 478. 



Moults, partial, 386. 



Mouse, song of, 562. 



Moustache-monkey, colors of the, 

 532, 647. 



Moustaches, in monkeys, 146. 



Mud-turtle, long claws of the 

 male, 346. 



Mulattoes, persistent fertility of, 

 167; immunity of, from yellow 

 fever, 188. 



Mule, sterility and strong vitality 

 of the, 167. 



Mules, rational, 76. 



MuUer, Ferd., on the Mexicans 

 and Peruvians, 141. 



, Fritz, on astomatous males 



of Tanais, 204; on the disappear- 

 ance of spots and stripes in 

 adult mammals, 642; on the pro- 

 portions of the sexes in some 

 Crustacea, 252; on secondary 

 sexual characters in various 

 Crustaceans, 262 et seq. ; musical 

 contest between male Cicadae, 

 280; mode of holding wings in 

 Castnia, 311; on birds showing 



