486 



INDEX. 



Vessels of placenta, 360 — -363 



Vestibule, chick, 158 



Villi : of human ovum, 335 ; of 

 zona in dog, 347; of subzonal 

 membrane of rabbit, 347 ; of 

 chorion of mammal, 349 ; of 

 placenta, 360—363 



Visceral arches, 245 ; of rabbit, 



334 



Visceral arches of chick, 162 — 167; 



of rabbit, 334 ; of mammalia, 



402 

 Visceral clefts: of chick, 162 — 



167, 281; closure of do., 164; 



of rabbit, 334; of mammalia, 



402, 418 

 Visceral folds of chick, 163 

 Visceral skeleton of chick, 242 



— 246 

 Visceral vein of chick, 284 — 290 ; 



of mammalia, 409 — 413 

 Vitellin, 5 

 Vitelline arteries: of chick, 167, 



293 — 298, 225; of second day, 



89, 103 

 Vitelline duct of chick, 196, 232; 



of mammals, 350 

 Vitelline membrane, 4; of hen's 



egg, 13 — 15; of mammal, 310 

 Vitelline veins of chick, 84, 226. 



288 — 290 ; of second day, 92, 



104; in rabbit, 343; of mam- 

 malia, 410 — 413 

 Vitreous humour of chick, 140, 150 



Viviparous animals, 308 

 Vomer of chick, 246 



W 



White matter : of spinal cord of 

 chick, 252; of brain of mam- 

 malia, 386 — 387 



Wings of chick, 200 



Wolffian body: of chick, 190 — 

 193 ; of mammalia, 414 ; of 

 chick of second day, 106 



Wolffian duct of chick, 190, 213 ; 

 of second day, 94 — 95, 106; of 

 mammalia, 414 



Wolffian ridge of chick, 198 



Wolffian tubules of chick, 106, 

 '91—193. 213 



Yolk of hen's egg, 4 — 7 ; arrange- 

 ment of, 6; structure of, 5 



Yoli-sac: of chick, 28 — 37, 277 — 

 280; of mammals, 327; of 

 marsupials, 352; of rabbit, 353; 

 of 'numau ovum, 355 — 358; of 

 dog, 358 



Zona radiata, 310; of chick, 15 

 Zonary placenta: histology of, 

 360 ; derivation of, 364 



CAMDRIDGE ; PRINTED BY J. 



. CLAY, AT THE UNIVERSITY PRESS. 



