( 406 ) 



INDEX, 



ABBOTT. 



-♦c^- 



ALCA, 



A. 



Abbott, C, on the battles of seals, ii. 

 240. 



Abductor of the fifth metatarsal, 

 presence of, in man, i. 128. 



Abercrombie, Dr., on disease of the 

 brain affecting speech, i. 58. 



Abipones, marriage-customs of the, 

 ii. 373. 



Abou-Simbel, caves of, i. 217. 



Abortion, prevalence of the practice 

 of, i. 134. 



Abstraction, i. 62. 



Acalles, stridulation of, i. 384. 



Acanthodactylus capensis, sextial dif- 

 ferences of colour in, ii. 36. 



Accentor modularis, ii. 198. 



Acclimatisation, difference of, in dif- 

 ferent races of men, i. 216. 



Acketidx, stridulation of the, i. 352, 

 353, 355 ; rudimentary stridulating 

 organs in female, i. 359. 



Acilius sulcatus, elytra of the female, 

 i. 343. 



Acomus, development of spurs in the 

 female of, ii. 162. 



Acridiidce, stridulation of the, i. 352, 

 356 ; rudimentary stridulating or- 

 gans in female, i. 359. 



Acting, i. 232. 



Actinice, bright colours of, i. 322. 



Admiral butterfly, i. 392. 



Adoption of the young of other ani- 

 mals by female monkeys, i. 41. 



Advancement in the organic scale, 

 Von Baer's definition of, i. 211. 



Aeby, on the difference between the 

 skulls of man and the quadrumana, 

 i. 190. 



"^Esthetic faculty, not highly deve- 

 loped in savages, i. 64. 



"Affection, maternal, i. 40 ; mani- 

 festation of, by animals, i. 40 ; pa- 



rental and filial, partly the result 

 of natural selection, i. 81 ; shown 

 by birds in confinement, for certain 

 persons, ii. 110; mutual, of birds, 

 ii. 108. 

 Africa, probably the birthplace of 

 man, i. 199 ; South, crossed popu- 

 lation of, 1. 225 ; South, retention 

 of colour by the Dutch in, i. 242 ; 

 South, proportion of the sexes in 

 the butterflies of, i. 310; tattooing 

 practised in, ii. 339 ; Noi'thern, 

 coiffure of natives of, ii. 340. 



Agassiz, L., on conscience in dogs, i. 

 78 ; on the coincidence of the races 

 of man with zoological provinces, i. 

 218; on the number of species of 

 man, 1. 226 ; on the courtship of the 

 land-snails, i. 324; on the bright- 

 ness of the colours of male fishes 

 during the breeding season, ii. 13 ; 

 on the frontal protuberance of the 

 males of Geophagus and Cichla, ii. 

 13, 20 ; on the slight sexual differ- 

 ences of the South Americans, ii. 

 323 ; on the tattooing of the Ama- 

 zonian Indians, ii. 342. 



Age, in relation to the transmission 

 of characters in birds, ii. 183 ; va- 

 riation in accordance with, in birds, 

 ii. 213. 



Agelseus phceniceus, ii. 116, 



Ageronia feronia, noise produced by, 

 'i. 387. 



Agrion, dimorphism in, i. 363. 



Agrion Bamhurii, sexes of, i. 362. 



Agrionid^, difference in the sexes of, 

 i. 362. 



Agrotis exclamationis, i. 369. 



Ague, tertian, dog suffering from, 

 i. 13. 



Atthunis polytmus, young of, ii. 220. 



AiNOS, hairiness of the. ii. 321. 



Alca torda, young of, ii. 217. 



