480 



INDEX. 



Limbs, of chick, igS — 200, 233 ; 

 of rabbit, 334 ; of human em- 

 l"'yo> 339 ; mammalia, 406 



Liver of ohici;, 178 — 181 ; mam- 

 malia, 410 



Lumbar vems, mammalia, 412 — 

 413 



Lungs of cbiok, 176—178, 267 ; 

 mammalia, 418 



M 



Male pronucleus, 1 7 



Malleus, 398, 404 



Malpighian corpuscles, chick, 182 ; 

 bodies of chick, 190 



Mammalia, two periods of develop- 

 ment, 308 ; viviparous, 308 



Mammary glands, 366; a source 

 of nutriment for the embryo, 

 308 



Man {see Human embryo) 



Mandible, chick, 246 



Mandibular arch, chick, 242 — 

 244; maxillary process of, 

 chick, 243; rabbit, 334; mam- 

 malia, 403 — 404 



Manubrium of malleus, 403 



Marsupiaha, foetal membranes of, 



352 

 Marsupium, 308 

 MEi:turation of ovum of mammal, 



310 

 Maxilla bones, chick, 246 

 Maxilla-palatine bones, chick, 246 

 Maxillary, processes of mandibu- 

 lar arch of chick, 243 

 Meatus auditorius externus, of 



chick, 166; of mammal, 397 

 Meatus venosus, of chick, 169, 



287 

 Meckelean cartilage, chick, 244; 



mammalia, 403 

 Medulla oblongata, of chick, 123; 



of mammalia, 367 

 Medullary canal, of chick, 40, 62, 



96 

 Medullary folds, o£ chick, 40, 62, 



66 77, 97 ; of mammal, 327 



Medullary groove, of chick, 29, 

 62 — 65 ; of rabbit, 320, 32 1 ; 

 of man, 338 ; closure of, in 

 mammal, 327 — 331 



Medullary plate, of chick, 62 ; of 

 rabbit, 320 ; of man, 338 



Membrana capsulo pupiUaris of 

 mammalia, 387 — 389 



Membrana limitans externa, 145 ; 

 granulosa, 310 



Membrana propria of follicles, 

 chick, 182 



Membrane : of shell of hen's egg, 

 T ; serous, of chick, 32 — 41 ; 

 vitelline of hen's egg, 13 — 15 



Membrane bones, 242 ; of skull, 

 chick, 246 



Membrane of Beissner, mamma- 

 lia, 397 



Membrane of Deseemet, 389 



Membrane of Corti, and tectoria 

 mammalia, 395 



Membranous labyrinth, chick, 

 158 



Meniscus of birds, 210 



Meroblastio segmentation, 18 



Mesenteric veins of chick, 228, 

 288 — 290 



Mesentery, of chick, 173; mam- 

 malia, 419 — 20 



Mesoblast: derivatives of, in chick, 

 25—26; of primitive streak of 

 chick, 54, 57; derived from 

 lower layer cells in chick, 55, 

 67i 59 ; of area opaca in chick, 

 65 ; splitting of, in chick, 68 ; of 



trunk of embryo chick, 185 



189; histological differentiation 

 of, in chick, 269; of primitive 

 streak of rabbit, 320; of mam- 

 mal, double origin of, 321 



323; vertebral zone of, 328- 

 lateral zone of, 328; somites 

 of, 328 



Mesoblastie somites, formation of 



in chick, 70; of chick, 81, 185 



187, 204 — 208 



Mesooardium of chick, 88 ; forma- 

 tion of, 264 



Mesogastrium, chick, 182 



Mesonephros of chick, 212 



