INDEX. 719 



Arrows, use of, 203. 



Arteries, variations in the course of the, 30. 



Artery, effect of tying, upon the lateral channels, 36. 



Arthropoda, 299. 



Arts practiced by savages, 203. 



Ascension, colored incrustation on the rocks of, 298. 



Ascidia, affinity of the lancelet to, 181; tadpole-like larvae of, 181. 



Ascidians, 296; bright colors of some, 295. 



Asians, Asiatic and African species of, 626, asinus tceniopus, 626. 



Ass, color variations of the, 626. 



Ateles, effects of brandy on an, 8; absence of the thumb in, 57; 

 ateles beelzebuth, ears of 16; ateles murgiiiatux, color of the ruff of 

 613; hair on the head of, 627. 



Ateuchus cicatricosus, habits of, 340. 



Ateuchus, stridulation of, 346. 



Athalia, proportions of the sexes in, 286. 



Atropus pulsatorius, 330. 



Attention, manifestations of, in animals, 83. 



Audouin, V., on a hymenopterous parasite with a sedentary male, 

 251. 



Audubon, J. J., on the pinioned goose, 119 ; on the speculum of 

 Mergus cucullntus, 267; on the pugnacity of male birds, 411, 4l4; 

 on courtship of Caprimulgus, 416; on Tetrao cupido, 417; on Ardea 

 nycticorax, 417; on Sturnella ludomciana, 417; on the vocal organs 

 of Tetrao cupido, 422; on the drumming of the male Tetrao umbel- 

 Ins, 426; on sounds produced by the nightjar, 426, 427; on Ardea 

 hcrodias and Cathartes jota, 431, 432; on Mimus polyglottus, 686; on 

 display in male birds, 447; on the spring change of color in some 

 finches, 446; on migration of mocking thrushes, 467; recognition of 

 a dog by a turkey, 468; selection of mate by female birds, 472; on 

 the turkey, 468; on variation in the male scarlet tanager, 481; on the 

 musk-rat, 619; on the habits of Pyranga czstiva, 515; on local differ- 

 ences in the nests of the same species of birds, 519; on the habits of 

 woodpeckers, 521 ; on Bomby cilia carolinensis, 525 ; on young 

 females of Pyranga cestioa acquiring male characters, 525; on the 

 immature plumage of thrushes, 530; on the immature plumage of 

 birds, 530; et seg., on birds breeding in immature plumage. 551; on 

 the growth of the crest and plumes in the male Ardea ludoviciana, 

 551; on the change of color in some species of Ardea, 562. 



Audubon and Bachiuau, MM., on squirrels fighting, 570; on the 

 Canadian lynx, 594. 



Aughey, Prof., on rattlesnakes, 401. 



Austen, N. L., on Atiolis cristatellus, 401. 



Australia, not the birthplace of man, 176; half-castes killed by the 

 natives of, 194; lice of the natives of, 193. 



Australia, South, variation in the skulls of aborigines of, 28. 



Australians, color of new-born children of, 636; relative height of 

 the sexes of, 638; women a cause of war among the. 640. 



Axis deer, sexual difference in the color of tue, 612. 



Aymaras, measurements of the, 39; no grey hair among the, 637; 

 hairlessness of the face in the. 639; long hair of the, 662. 



Azara, on the proportion of men and women among the Guaranys, 

 276; on Palamedea cornuta, 412; on the beards of the Guaranys, 



