INDEX. 



A. 



Accessory germ, 189. 

 nuclei (centres of ossification). 

 599, 640, 613. 



- thyroid gland. 318, 320. 

 Acervulus cerebri, 436. 

 Acroblast, 180. 

 After-birth see Placenta. 

 After-brain, 421. 



vesicle, 422, 427. 

 Air-cells of lung, 323. 

 Air-chamber of Hen's egg, 18. 219. 

 Albumen of Hen's egg, 17. 

 Alecitbal eggs, 12. 

 Alimentary tube. 281. 

 Allantoic circulation, 552. 

 Allantois of Mammals, of Man, 228, 

 245, 270, 398. 



- of Eeptiles and Birds, 217-19. 

 Amnion of Mammals, 227. 



- of Man, 244, 250. 



- of Reptiles and Birds, 207, 219. 

 Amniota, 238. 



Amniotic fluid of Man, 251, 271. 



- folds. 207-9. 



sheath of the umbilical cord, 252. 

 Ampulla of semicircular canals, 495. 

 Anal membrane, 291. 



- pit, 291. 

 Anamnia, 238. 



Animal cells of the germ, 60. 



pole of the egg, 11. 

 Animalculists 24. 

 Ankle-bones, 641. 

 Antrum of Highmore, 518. 

 Anus, fundament of, 290. 400. 

 Anvil see Incus. 



Aorta raadalis 576. 



double, 576. 



permanent, 565, 576. 



primitive, 295, 549. 

 Aortic arch, right-sided, 576. 



- arches, 286, 571, 573. 

 Appendix vermiformis, 301. 

 Aquedactus Sylvii, 425, 431. I 



Arbor vitae, 427. 



Archenteron, 85, 95, 170 nee also 



Coelenteron. 

 Archiblast, 189. 

 Archiblastic tissue, 189. 

 Arcuate fissure. 443 see also Fissura 



hippocampi. 

 Area embryonalis, 102. 



opaca, 99, 177. 



pellucida, 99, 178. 



vasculosa, 185. 



vitellina, 185. 

 Areola mamma?. 531. 

 Arteria carotis, 572. 



centralis retinas, 475, 481. 



- hyaloidca, 475. 



iliaca, 576. 



omphalomesenterica, 270, 549. 



perforans stapedia, 614. 



pulmonalis, 573. 



sacralis media, 576. 



spermatica. 386, 390. 



subclavia, 572. 



- umbilicalis, 260, 270, 552, 576. 



vertebralis, 572. 

 Arterial system, 570. 

 Articular cartilage, 643. 

 Articulare, 625. 



Articulation of jaw. primary, 624. 



secondary, 646, 626. 

 Atlas, 603. 



Atresia pupillaa congenita, 474. 

 Atrial partition, 558. 

 Atrioventricular valve, 555, 559, 561. 

 Atrium bursas omentalis. 800, 331. 



of heart, 554. 

 Auditory organ, 490. 



ossicles, 508, 619. 



pit, 491. 



ridge, 492. 

 - spot, 492. 



-sac \ f /Invertebrates, 492. 



vesicle / \Vertebrates, 491. 

 Auricle (external ear), 509. 



(of heart), 555. 

 Auricular canal (of heart), 555. 



