478 



INDEX. 



Graafian follicle, chick, 222, 310 

 Grey matter, of spinal cord of 

 cliick, 253; of brain of mam- 

 malia, 387 

 Growth of embryo of chick, 70 

 Guinea-pig, structure of blasto- 

 demi of, 323; relation of em- 

 bryonic layers of, 323; inver- 

 sion of the layers in, 341 



H 



Hasmatoxylin, to make and use, 

 429 



Hairs, 365 



Hardening reagents, 425 428; 

 picric acid, 425 ; corrosive sub- 

 limate, 426 ; osmic acid ; 427 ; 

 chromic acid, 427 ; absolute 

 alcohol, 428 ; the necessity of, 

 428 



Head of chick, 200 ; of rabbit, 



331 



Headfold of chick, 27 29, 33 37; 

 16 to 20 hours, 60 ; 20 to 24 

 hours, 66 ; of second day, 77 ; 

 of mammal, 329 



Heart of chick, 229 230, 256 

 264; formation of, 82 89, 102; 

 beating of, on second day, 89 ; 

 of third day, 167; auricles, 

 259- 262 ; ventricles, 260 262 ; 

 auricular septum, 257 262; 

 ventricular septum, 257 ; canalis 

 reuniens, 257 259; bulbus ar- 

 teriosus, 257 262 ; foramen 

 ovale, 262 264 ; Eustachian 

 valve, 263 264; circulation in, 

 263 264; structure of, 287 

 289, 293 297; resiune of, 299 



303 

 Heart of mammals, 329; struc- 

 ture of, 331 ; formation of, 406 ; 

 comparison of, with birds, 407 

 Hemiazygos vein, mammalia, 412 

 Hen : formation of albumen in, 

 16 ; ovarian fohicle of, 12 15 ; 

 mesovarium of, 11; ovary of, 

 II ; ovarian ovum of, 11, 15; 

 oviduct of, 15; epoophoron, 

 paroo]phoron and oviduct, 224 



Hen's egg, albumen of, 3, 16; 

 blastoderm, 7 10, 26, 27 : 

 chalazas, 4 ; cicatricula, 4 ; im- 



pregnation of. 



'7 ' 



laying of, 



17; polar bodies of, 17; seg- 

 mentation of, 18 24; vitelline 

 membrane of, 4, 13 15; yolk 

 of, 4 7 ; chorion of, 47 ; shell 

 of, 1, 16; irregular develop- 

 ment of, 48, 49; segmentation, 

 cavity of, 50 

 Hepatic cyhnders of chick, 179; 

 circulation of chick, 227 ; veins, 

 288 290 



Hind brain: of chick, 100; of 

 rabbit, 329 ; of mammals, and 

 birds, 367 370; medulla of, 

 367 ; cerebellum of, 367 370 



Hippo-camjDus major, mammalia, 

 380 



Hippo-campal fissure of cerebrum 

 of mammalia, 385 



Histological differentiation, in 

 chick, 269 273 ; of epiblast, 

 269, 271; of hypoblast, 269; 

 of mesoblast, 269 



Histology of placenta, 359 



Holoblastic segmentation, 307 



Human embryo: villi of, 335; 

 early stages of, 335 ; allantois 

 of, 336 340 ; yolk-sac of, 336 

 340; medullary plate of, 337; 

 amuion of, 338 340; cranial 

 flexure of, 338 340; limbs of, 

 339 ; body flexure of, 339 

 340 ; face of, 340 ; relation of, 

 with other mammals, 341 ; pla- 

 centa of, 355 



Human ovum, size of, 307 



Human placenta, histology of, 

 ^6^ ; derivation of, 64 



Humerus, chick, 234 



Hyaloid membrane, chick, 144, 

 146 



Hyoid arch of chick, 243 245 ; 

 of rabbit, 334; of mammalia, 

 403404 



Hyoid bone of chick, 245 



Hypoblast of chick : formation of, 

 25, 51 > 59; derivation of, 26; 

 of area opaca, 6^ ; histological 



