NDEX 



(An italic number indicates a page on which an illustration appears.) 



Abnormalities, 



cyclopia, 294 



duplications, 294 



erythroblastosis, 277 



German measles as cause of, 277 



persistence of tail, 280 



wingless chick, 296 

 Acids, 



as inducing agents, 85 



as parthenogenetic agents, 43 

 Addison's disease, 199 

 Adrenal gland (see also Suprarenal cor- 

 tex), 



adrenaline in, 199 



cortex of, 199 



formation of, 199 



function of, 199 



in human, 282 



medulla of, 199 

 Adrenaline, secretion of, 199 

 Afferent bronchial artery, 135, 136 

 After-birth (see Placenta) 

 Age, 



of chick embryos, 179, 208 



of frog embryos, 111 



of human embryos, 289 

 Agglutination of sperm, 45 

 Allantoic artery (see Umbilical artery) 

 Allantois, 190 



in chick, 1 74, 217, 255 



circulation in, 174, 178 



function of, 172 



at hatching, 198 



in human, 268 



mesoderm in, 201 

 Amniocardiac vesicles, 211 



Amnion, 172, 173, 174, 175, 255 



in chick, 



48-hr., 215, 216, 218 

 72-hr., 223, 225 



function of, 172 



in human, 267 



mesoderm in, 201 

 Amniotic cavity, 173 

 Amniotic fluid, human, 283, 285, 286 

 Amoeboid movement of cone of growth, 



143, 144 

 Amphibian embryo, 



cross section of, 71 



embryonic induction in, 78 



heart development in, 102 



homology of, with chick, 80 



induction of lens in, 103 



limb development in, 98 



longitudinal section of, 70 



organizer of, 78 



otocyst development in, 102 

 Amputation, of limbs, 237, 239, 240 

 Androgamones, 44 (see also Gamones) 

 Animal breeding, 52 

 Animal pole, 27 

 Anterior cardinal vein, 



in chick, 174, 178 

 48-hr., 220 

 72-hr., 224, 225 



in frog, 134 

 Anterior commissure, 162 

 Anterior intestinal portal, 210, 211 

 Anterior neuropore, 210 

 Antibodies, transfer of, 276 

 Anti-Rh factor, 277 

 Anus, of frog embryo, 70 



317 



