INDEX 



Abnormalities in human de- 

 velopment, 325-329 

 Acephalous embryos, 326 

 Afterbirth, 312 

 Air sacs: Chick, 209 

 Air space: Chick, 90 

 Albumen of egg: Chick, 90 

 Alimentary canal: Frog, 45- 



51; Chick, 203-212 

 Allantois: Chick, 161, 263 

 complete history of: Chick, 



169-172 



(mammal), 306 

 Amnion: Chick, 117, 132, 



160-161 

 entire history of: Chick, 



167-169 

 formation of (mammal), 



297 

 (human), abnormalities of, 



325 

 Amniotic, bands, 325 



cavity: Chick, 168 

 Amorphous embryos, 326 

 Angioblast, 147 

 Anterior chamber: Chick, 183 

 Anus (man), 316 

 Aortic arches: Frog, 62; 

 Chick, 145, 243; (see 

 Branchial blood-vessels) 



fate of: Chick, 246 

 Archenteron: Frog, 25 

 Archinephric duct: Frog, 78 

 Area, opaca: Chick, 104 



pellucida: Chick, 104 



Arrested development, 326- 



3/27 



Artery, allantoic: Chick, 248 

 carotid: Frog, 61; Chick, 



244 



lingual: Chick, 244 

 mandibular: Chick, 244 

 pulmonary: Chick, 245 

 subclavian: Chick, 245 

 umbilical: Chick (see Allan- 

 toic artery) 



vitelline: Chick, 145, 248 

 Auditory, capsules : Frog, 7 7 ; 



Chick, 267 

 pits: Chick, 141 

 vesicle: Frog, 43; Chick. 



.185 



Auricle: Chick, 156 

 Auricular chamber: Frog, 61 



Basilar plate: Frog, 75 ; Chick, 



226 



Beak: Chick, 281 

 Bladder: Frog, 50 



urinary (mammal), 312 

 Blastoderm: Chick, 91, 103, 

 163 



section of: Chick, 121 

 Blastodermic vesicle, 290 

 Blastomere: Frog, 18 

 Blastopore: Frog, 22, 46 

 Blastula: 100 

 Blood: Chick, 146-151 



corpuscles (see Blood) 



islands: Chick, 147 



33 J 



