INDEX. 



Abdominal wall of chick, 281 



Air-chamber, 3 



Albumen : composition of, 3 ; 

 arrangement of, in hen's egg, 

 3 ; formation of, in hen, 16 ; 

 fate of, in hen's egg, 109; of 

 incubated egg, 185 



Alimentary canal of chick, 28 33, 

 39; of third day and append- 

 ages of, 171 185 ; mammalia, 

 417421 



Alisphenoid region of chick, 240, 

 246 



Allantoic arteries : of chick, 225, 

 293, 298; in mammals, 348, 

 410413 



Allantoic veins of chick, 228, 287, 

 290; of mammals, 342 



Allantoic stalk, 351 



Allantois : of chick, 28 33, 46 

 47, 107, 182 185, 277, 280; 

 as a means of respiration, 2 32 ; 

 pulsation of, 277; of rabbit, for- 

 mation of, 331, 353; of human 

 embryo, 336340, 355 358 ; 

 of mammalia, structure of, 348; 

 of marsupials, 352 : of dog, 358 



Alum carmine, to make and use, 



Amnion : of chick, 28 33, 43 46, 

 63, 107, 195; of third day, 113, 

 276 280; pulsation of, 277, 

 278; false, of chick, 46; of 

 rabbit, 330, 353; of human 

 embryo, 338 340; of mam- 



malia, 343 ; structure of mam- 

 malian, 346; of dog, 358 

 Amphioxus, spinal cord of, 254 

 Annuli fibrosi of birds, 210 

 Anterior commissure of cerebral 



hemisphere, mammalia, 381 

 Aorta of chick, 224, 292, 298; 



of mammals, 407 

 Aortas of chick of second day, 



89, 103 

 Aortic arches of chick, 103, 106, 



167; of fourth day, 225, 291 



298 

 Apes' placenta, 355 ; histology of, 



363 ; derivation of, 364 

 Aqueductus vestibuli of chick, 



158 



Aqueductus sylvii (see iter.) 

 Aqueous humour: of chick, 153 



154; of mammalia, 390 

 Arbor vitae of birds, 369 

 Area opaca of chick, 7, 49, 195 ; 



mesoblast of, 65 ; hypoblast of, 



65 ; vascular portion of, 74 75, 



no; of third day, 109 

 Area pellucida : of chick, 8, 49, 55 ; 



of third day, 1 10 ; of mammals, 



328 

 Area vasculosa : of mammalia, 



formation of, 342 ; circulation 



of > 343346 



Arteria centralis retinas of mam- 

 malia, 387 390 



Arterial system: of chick, 224 

 226, 291 303; mammalia, 407 

 409 



Arterial arches, mammalia, 407 



