770 INDEX. 



Ovffioa moscliatus, horns of, 576. 



Ovipositor of insects, 235. 



Oma cyclocerox, mode of fighting of, 579, 585. 



Ovule of man, 9. 



Owen, Prof., on the Corpora Wolffiana, 10; on the great toe in 

 man, 10; on the nictitating membrane and semilunar fold, 19; on the 

 development of the posterior molars in different races of man, 22; 

 on the length of the coecum in the Koala, 23; on the coccygeal verte- 

 brae, 25; on rudimentary structures belonging to the reproductive 

 system, 26; on abnormal conditions of the human uterus, 43; on the 

 number of digits in the Ichthyopterygia, 42; on the canine teeth in 

 man, 45; on the walking of the chimpanzee and orang, 56; on the 

 mastoid processes in the higher apes, 59; on the hairiness of ele- 

 phants in elevated districts, 64; on the caudal vertebrae of monkeys, 

 65; classification of mammalia, 108; on the hair in monkeys, 171; on 

 the piscine affinities of the Ichthyosaurians, 180; on polygamy and 

 monogamy among the antelopes, 246; on the horns of Antilocapra 

 ameriutna, 265; on the musky odor of the crocodiles during the 

 breeding season, 398; on the scent-glands of snakes, 399; on the 

 Dugong, Cachalot and Ornitliorhyncliiis, 572, 573; on the antlers of 

 the red deer, 582; on the dentition of the Camelidae, 586; on the 

 horns of the Irish elk, 587; on the voice of the giraffe, porcupine and 

 stag. 600; on the laryngeal sac of the gorilla and orang, 602; on the 

 odoriferous glands of mammals, 604, 605; on the effects of emascula- 

 tion on the vocal organs of men, 645; on the voice of Hylobates 

 agilis, 647; on American monogamous monkeys, 674. 



Owls, white, new mates found by, 463. 



Oxynotus. difference of the females of two species of, 536. 



Pachydermata, 247. 



Pachytylus migratorius. 321. 



Paget, on the abnormal development of hairs in man, 20; on the 

 thickness of the skin on the soles of the feet of infants, 37. 



Pagurus, carrying the female, 303. 



Painting, pleasure of savages in, 203. 



PalcBinon, chelee of a species of, 302. 



Palfjeornis, sexual differences of color in, 562: pal&OTnis javanicua, 

 color of beak of, 525; palcKornis rom, young of, 532. 



Palame.dea cornutr, spurs on the wings, 414. 



Paleolithic period, 164. 



Palestine, habits of the chaffinch in, 281. 



Pallas, on the perfection of the senses in the Mongolians, 38; on 

 the want of connection between climate and the color of the skin, 

 219; on the polygamous habits of Antilope Saiga. 246; on the lighter 

 color of horses 'and cattle in winter in Siberia, 260; on the tusks of 

 the musk-deer, 586; on the odoriferous glands of mammals. 604; on 

 the odoriferous glands of the musk-deer, 605: on winter changes 

 of color in mammals, 619; on the ideal of female beauty in North 

 China. 659. 



Palm (iris acccssorius. muscle variations of the, 30. 



Pampas, horses of the, 206. 



Panger.esis, hypothesis of, 258, 261. 



Panniculus carnosus, 14. 



Pausch, on the brain of a feetai Cebus apclla, 233. 



