390 



INDEX. 



female, destitute of large canines, i. 150 ; 

 imitative faculties of, i. 155 ; canine teeth 

 of male, ii. 280; females of some, less 

 hairy beneath than the males, ii. 361. 



Apes, long-armed, their mode of progres- 

 sion, i. 137. 



Apis mellifica, large male of. i. 337. 



Apollo. Greek statues of, ii. 333. 



Apoplexy in Cebus Azaro?, i. 12. 



Approbation, influence of the love of, i. 

 82, 88,157, 158. 



Appendages, anal, of insects, i. 332. 

 prosmictits scapulatm, ii. 166. 



Aquatic birds, frequency of white plu- 

 mage in, ii. 219. 



Aquila chrysa'etos, ii. 100. 



Arab women, elaborate and peculiar coif- 

 fure of, ii. 336. 



Arabs, gashing of «heeks and temples 

 among the, ii. 323. 



Arachnida, i. 321. 



Arakhan," artificial widening of the fore- 

 head by the natives of, ii. 335. 



Arboricola, young of, ii. 182. 



Archeoptery'x, i. 196. 



Arctiid^e, coloration of the, i. 3S3. 



Ardea asha, rufescens, and ccerulea, 

 change of color in, ii. 221, 222. 



Ardea ccerulea, breeding in immature 

 plumage, ii. 205. 



Ardea gularis, change of plumage in, ii. 

 222. 



Ardea herodiak, love-gestures of the male, 

 ii. 65. 



Ardea ludoriciana, age of mature plu- 

 mage in, ii. 204 ; continued growth of 

 crest and plumes in the male of, ii. 207. 



Ardea nycticorax, cries of, ii. 48. 



Ardeola, young of, ii. 1S2. 



Ardetta, changes of plumage in, ii. 170. 



Argenteutl, i. 28. 



Argus pheasant, ii. 69, 93, 173 ; display of 

 plumage by the male, ii. 89 ; ocellated 

 spots of the, ii. 12S, 135; gradation of 

 characters in the, ii. 135. 



Argyll, Duke of, the fashioning of imple- 

 ments peculiar to man, i. 50 ; on the con- 

 test in man between right and wrong, i. 

 100; on the physical weakness of man, i. 

 149 ; on the primitive civilization of man, 

 i. 174; on the plumage of the male Argus 

 pheasant, ii. 89 ; on Urosticte Benjamini, 

 ii. 145; on the nests of birds, ii. 159; on 

 variety as an object in nature, ii. 220. 



Argynnis aglaia, coloring of the lower 

 surface of, i. 3S4. 



Aricoris epitus, sexual differences in the 

 wings of i. 335. 



Aristocracy, increased beauty of the, ii. 

 340. 



Arms, proportions of, in soldiers and sailors, 

 i. 112; direction of the hair on the, i. 

 1S5. 



Arms and hands, free use of, indirectly cor- 

 related with diminution of canines, i. 138. 



Arrest of development, i. 117. 



Arrow-heads, stone, general resemblance 

 of, i. 224. 



Arrows, use of, i. 224. 



Arteries, variations in the course of the, 

 i. 104. 



Artery, effect of tying, upon the lateral 

 channels, i. 112. 



Artiiropoda, i. 31S. 



Arts practised by savages, i. 225. 



Ascension, colored incrustation on the 

 rocks of, i. 317. 



Ascidia, affinity of the lancelet to, i. 196; 

 tadpole-like larva? of, i. 197. 



Ascidians, i. 315 ; bright colors of some, f. 

 313. 



Asinus, Asiatic and African species of d. 

 291. 



Asinus tceniopus, ii. 291. 



Ass, color-variations of the, ii. 291. 



Ateles, effects of brandy on an, i. 12 ; ab- 

 sence of the thumb in, i. 135. 



Ateles beelzebuth, ears of, i. 22. 



Ateles marginatus, color of the ruff of, ii. 

 278; hair on the head of, ii. 105; on the 

 recognition of a dog by a turkey, ii. 106 ; 

 on the selection of a mate by female 

 birds, ii. 199. 



Ateuchus, stridulation of, i. 372. 



Ateuclms cicatricosus, habits of, i. 365. 



Athalia, proportions of the sexes in, i. 305. 



Attention, manifestations of, in animals, i. 

 43. 



Audouin, V., on a hymenopterous parasite 

 with a sedentary male, i. 264. 



Audubon, J. J., on the pugnacity of male 

 birds, ii. 41, 46; on Tetrao cupido, ii. 

 47; on Ardea nycticorax, ii. 48; on 

 Sturnella ludoriciana, ii. 48 ; on the 

 vocal organs of Tetrao cupido, ii. 53 ; on 

 •the drumming of the male Tetrao um- 

 oellus, ii. 59 ; on sounds produced by the 

 nightjar, ii. 61 ; on Ardea herodias and 

 Cathartes jota, ii. 65; on the spring 

 change of color in some finches, ii. 83 ; 

 on Mimus polyglottus, ii. 112; on the 

 turkey, ii. 114, 116; on variation in the 

 male scarlet tanager, ii. 121 ; on the hab- 

 its of Pyranga azstiva, ii. 159; on local 

 differences in the nests of the same spe- 

 cies of birds, ii. 163; on the habits of 

 woodpeckers, ii. 167 ; on Bomhycilla 

 Carolinensis, ii. 172; on young females 

 of Tanagra aistiva acquiring male 

 characters, ii. 172 ; on the immature plu- 

 mage of thrushes, ii. 177 ; on the imma- 

 ture plumage of birds, ii. 178, et seq. ; on 

 birds breeding in immature plumage, ii. 

 205; on the growth of the crest and 

 plumes in the male Ardea ludoriciana, 

 ii. 206 ; on the change of color in somo 

 species of Ardea, ii. 221 ; on the specu- 

 lum of Mergus cucullatus, ii. 277 ; on 

 the musk-rat, ii. 2S4. 



Audubon and Bachman, MM., on squirrels 

 fighting, ii. 228 ; on the Canadian lynx, ii. 

 255. 



Austen, N. L., on Anolis cristatelltts, ii. 

 31. 



Australia, half-castes killed by the na- 

 tives of, i. 212 ; lice of the natives of, L 



