706 



IXDEX. 



Varieties of biliary salts in different ani- 

 mals, 182 



Vegetable food, necessary to man, 106 

 Vegetable parasites, 532 

 Vegetables, production of heat in, 256 



absorption of carbonic acid and ex- 

 halation of oxygen by, 49, 260 

 Vegetative functions, 58 

 Veins, 290 



their resistance to pressure, 290 



absorption by, 165 



action of valves in, 293 



motion of blood through, 291 



rapidity of circulation in, 294 



omphalo-meseuteric, 666 



umbilical, 669 



vertebral, 672 

 Vense cavse, formation of, 673 



position of, in foetus, 681 

 Vena azygos, superior and inferior, for- 

 mation of, 673 



Venous system, development of, 672 

 Ventricles of heart, single in fish and 

 reptiles, 265, 266 



double in birds and mammalians, 

 267 



situation of, 268 



contraction and relaxation of, 269 



elongation during contraction, 275 



muscular fibres of, 277 

 Vernix caseosa, 643 

 Vertebrata, nervous system of, 378 

 Vertebrae, formation of, 591, 641 

 Vesicles, adipose, 90 



pulmonary, 235 



seminal, 560 

 Vesiculse seminales, 560 



formation of, 660 



Vicarious secretion, non-existence of, 325 

 Vicarious menstruation, nature of, 325 

 Villi, of intestine, 163 



absorption by, 164 



of chorion, 609-611 

 Vision, 492 



ganglia of, 382, 434 



nerves of. 447, 493 



apparatus of, 493 



distinct, at different distances, 496 



circle of, 499 



Vision, of solid bodies with both eyes, 502 

 Vital phenomena, their nature and pecu- 

 liarities, 54 

 Vitellus, 541 



segmentation of, 587 



formation of, in ovary of fostus, 663 

 Vitelline circulation, 665 



membrane, 544 



spheres, 587 



Vocal sounds, how produced, 464 

 Voice, formation of, in larynx, 464 



lost, after division of spinal acces- 

 sory nerve, 475 



Volition, seat of, in tuber annulare, 438 

 Vomiting, peculiar, after division of 

 pneurnogastrics, 473 



Water, as a proximate principle, 69 



its proportion in the animal tissues 



and fluids, 70 

 its source, 70 



mode of discharge from the body, 71 

 Weight of organs, in comparative, newly 



born infant and adult, 689 

 White globules of the blood, 220 

 action of acetic acid on, 221 

 sluggish movement of, in circula- 

 tion, 297 



White substance, of nervous system, 368 

 of Schwanu, 368 

 of spinal cord, 380 

 of brain, insensible and inexcitable, 



417 

 Withering and separation of umbilical 



cord, after birth, 689 

 Wolffian bodies, 655 

 structure of, 656 

 atrophy and disappearance of, 656, 



657 



vestiges of, in adult female, 662 

 WYMAN, Prof. Jeffries, on cranial nerves 



of Rana pipiens, 449 

 fissure of hare-lip on median line, 

 637 



Yellow color, of nrine in jaundice, 357 

 of corpus luteum, 579 



Zona pellucida, 544 



THE END. 



