466 



INDEX 



Cerebellum, 155, 251 



Cephalic mesoblastic somites, 108, 

 269, 428 



Cerebral flexures, 149, 245 



Cerebral ganglia, 157-162, 262 



Cerebral hemispheres, origin of, 151; 

 (see telencephalon) 



Cervical flexure, 133, 245 



Chalazge, 18 



Chemical composition of parts ot 

 hen's egg, 20, 21 



Chiasma opticus, 154, 249 



Choamfi, 215, 285 



Chondrification, 408 



Chorion, 135, 217, 218, 220 



Choroid coat of eye, 279; fissure, 

 166, 281 ; plexus, 248 



Chromaffin tissue, 404 



Chronology, 64 



Cilary processes, 272, 274 



Circulation of blood, 121, 122, 197- 

 200, 372-376 



Circulation of blood, changes at 

 hatching, 376; completion of 

 double, 355 



Classification of stages, 64-67 



Clavicle, 434, 435 



Cleavage of ovum (hen), 39-43 



Cleavage of ovum (pigeon), 43-47 



Cloaca, 314-319; (see hind-gut) 



Cloacal membrane, 315, 318; (see 

 also anal plate) 



Cceliac artery, 363 



Ccelome (see body-cavity) 



Coanogenetic aspects of develop- 

 ment, 6 



Collaterals, origin of, 238 



Collecting tubules of mesonephros, 

 379, 380 



Colliculus palato-pharyngeus, 398 



Commissura anterior, 252; inferior, 

 252 ; posterior, 252 ; trochlearis, 252 



Concrescence, theory of, 82, 84 



Cones of growth, 235 



Conjunctival sac, 279 



Coprodseum, 315, 318, 319 



Coracoid, 434, 435 



Cornea, 278 



Corpus striatum, 247 



Corpus vitreum, 275 



Cortical cords of suprarenal cap- 

 sules, 405 



Cranial flexure, 133, 245; nerves, 261 



Cristse acusticse, 295 



Crop, 312 



Crural veins, 372 



Cushion septum, 355 



Cuticle of shell, 17 



Cutis plate, 185, 188 



Delimitation of embryo from blas- 

 toderm, 91 



Dendrites, origin of, 236 



Determinants, 7 



Diencephalon, early development of, 

 152; later development of, 249 



Dorsal aorta, origin of, 121 



Dorsal longitudinal fissure and sep- 

 tum of spinal cord, 243, 244 



Dorsal mesentery, 172, 342 



Duct of Botallus, 359, 361, 376 



Ducts of Cuvier, 200, 204, 207, 364 



Ductus arteriosus (see duct of Bo- 

 talus) ; choledochus (common bile- 

 duct), 181, 321; cochlearis, 293; 

 cystico-entericus, 321; endolymph- 

 aticus, 169, 289; hepato-cysticus, 

 321; hepato-entericus, 321*; veno- 

 sus (see meatus venosus) 



Duodenum, 310, 311 



Ear, later development of, 288 



Ectamnion, 138 



Ectoderm and entoderm, origin of, 52 



Ectoderm of oral cavity, limits of, 

 301 



Egg, formation of, 22, 24, 25 



Egg-tooth, 302, 303 



Embryonic circulation, on the fourth 

 day, 372-374; on the sixth day, 

 374; on the eighth day, 374-376 



Embryonic membranes, diagrams of, 

 219, 220; general, 216; origin of, 

 135; summary of later history, 145 



Endocardium, origin of, 119 



Endolymphatic duct (see ductus 

 endolymphaticus) 



Endolymphatic sac (see saccus endo- 

 lymphaticus) 



Entobronchi, 327, 328 



Entoderm, origin of, 52 



Ependyma, origin of, 239 



Epididymis, 391, 398 



Epiphysis, 153, 249 



Epiphyses (of long bones), 409 



Epistropheus, development of, 420 



Epithalamus, 251 



Epithelial cells of neural tube, 233, 

 234 



Epithelial vestiges of visceral pouches 

 309 



Epoophoron, 401 



Equatorial ring of lens, 277-278 



Excentricity of cleavage, 41, 47 



Excretory system, origin of, 190 



External auditory meatus, 297, 300 



External form of the embryo, 211 



Eye, early development 



later development of, 271 

 Eyelids, 279-280 



164; 



