852 



INDEX 



Bavea, vocal organs of the, 481 ; steal- 

 ing bright objects, 533 ; pied, of the 

 Faroe Islands, 547. 



Rays, prehensile organs of male, 521. 



Kazor-bill, young of the, 62'?. 



Reade, Winwood, suicide among sav- 

 ages in Africa, 159; mulattoes not 

 prolific, 228; effect of castration of 

 horned-sheep, 654; on the Guinea 

 sheep, 309; on the occurrence of a 

 mane in au African ram, 688 ; on the 

 negroes' appreciation of the beauty 

 of their women, 743 ; on the admira- 

 tion of negroes for a black skin, 745 ; 

 on the idea of beauty among negroes, 

 748-749; on the JoUofs, a tribe on 

 the west coast of Africa, 756; on 

 the marriage customs of the negroes, 

 771. 



Reason, in animals, 107. 



Redstart, American, breeding in imma- 

 ture plumage, 625. 



Redstarts, new mates found by, 527. 



Reduvidse, stridulation of, 370. 



Reed-bunting, head-feathers of the 

 male, 518 ; attacked by a bull-finch, 

 532. 



Reefs, fishes frequenting, 446. 



Reeks, H. , retention of horns by breed- 

 ing deer, 650; cow rejected by a 

 bull, 677 ; destruction of piebald rab- 

 bits by cats, 701. 



Regeneration, partial, of lost parts in 

 man, 24. 



Regent-bird, 534. 



Reindeer, horns of the, 308; battles 

 of, 647 ; horns of the female, 650 ; 

 antlers of, with numerous points, 

 659; winter change of the, 700; 

 sexual preferences shown by, 714. 



Relationship, terms of, 759. 



Religion, deficiency of, among certain 

 races, 130; physical elements of, 



. 132-133. 



Remorse, 155; deficiency of, among 

 savages, 177-178. 



Rengger, on the diseases of Cebus 

 azarse, 23 ; on the diversity of the 

 mental faculties of monkeys, 48 ; on 

 the thin legs and thick arms of the 

 Payaguas Indians, 54; on the in- 

 feriority of Europeans to savages in 

 their senses, 55; on revenge taken 

 by monkeys, 100; on maternal af- 



^ feotion in a Cebus, 100 ; on the rea- 



soning powers of American mon- 

 keys, 110; on the use of stones by 

 monkeys lor cracking hard nuts, 

 114—115; on the sounds uttered by 

 Cebus azar», 119; on the signal- 

 cries of monkeys, 122; on the po- 

 lygamous habits of Mycetes caraya, 

 287 ; on the voice of the howling 

 monkeys, 682 ; on the odor of Cervus 

 campestris, 684; on the beards of 

 Mycetes caraya and Pithecia Sa- 

 tanas, 686; on the colors of Felis 

 mitis, 690; on the colors of Cervus 

 paludosus, 693 ; on sexual differences 

 of color in Mycetes, 694 ; on the color 

 of the infant Guaranys, 718 ; on the 

 early maturity of the female of Cebus 

 azarse, 718; on the beards of the 

 Guaranys, 722; on the emotional 

 notes employed by monkeys, 736; 

 on American polygamous monkeys, 

 760. 



Representative species, of birds, 604. 



Reproduction, unity of phenomena of, 

 throughout the mammalia, 24; period 

 of, in birds, 624. 



Reproductive system, rudimentary 

 structures in the, 43; accessory 

 parts of, 215. 



Reptiles, 455. 



and birds, alliance of, 220. 



Resemblances, small, between man and 

 the apes, 201-202. 



Retrievers, exercise of reasoning facul- 

 ties by. 111. 



Revenge, manifested by animals, 100. 



Reversion, 59; perhaps the cause of 

 some bad dispositions, 186. 



Rhagium, difference of color in the 

 sexes of a species of, 386. 



Rhamphastos carinatus, 635. 



Rhea darwinii, 617. 



Rhinoceros, nakedness of, 83 ; horns 

 of, 653; horns of, used defensively, 

 669 ; attacking white or gray horses, 

 698. 



Rhynchsea, sexes and young of, 614. 



austral) s, 614. 



bengalensis, 616. 



capensis, 615. 



Rhythm, perception of, by animals, 

 732-733. 



Richard, M., on rudimentary muscles 

 in man, 30. 



Richardson, Sir J., on the pairing of 



