480 



INDEX. 



Limbs, of chick, 198200, 233 ; 

 of rabbit, 334 ; of human em- 

 bi'yO' 339 ; mammalia, 406 



Liver of chick, 178 181 ; mam- 

 malia, 419 



Lumbar veins, mammalia, 412 



413 

 Lungs of c'lick, 176 1 78, 267 ; 

 mammalia, 418 



M 



Male pronucleus, 17 



Malleus, 398, 404 



Malpighian corpuscles, chick, 182 ; 

 bodies of chick, 190 



Mammalia, two j^eriods 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, fcEtal membranes of, 



352 

 MarsujDium, 308 

 Maturation of ovum of mammal, 



310 

 Maxilla bones, chick, 246 

 Maxilla-palatine bones, chick, 246 

 MaxiUary, processes of mandibu- 

 lar arch of chick, 243 

 Meatus auditorius externus, of 



chick, 166; of mammal, 397 

 Meatus veuosus, of chick, 169, 



287 

 Meckelean cartilage, chick, 244 ; 



mammalia, 403 

 Medulla oblongata, of chick, 122; 



of mammalia, 367 

 Medullary canal, of chick, 40, 62, 



96 

 Medullary folds, of chick, 40, 62, 



60 77, 97; of mammal, 327 



Medullary groove, of chick, 29, 

 62 65; of rabbit, 320, 321; 

 of man, 338 ; closure of, in 

 mammal, 327 331 



Medullary plate, o'f chick, 62 ; of 

 rabbit, 320; of man, 338 



Membrana capsulo pupillaris of 

 mammalia, 387 389 



Membrana limitans externa, 145; 

 granulosa, 310 



Membrana propria of follicles, 

 chick, 182 



Membrane : of shell of hen's egg, 

 I ; serous, of chick, 32 41 ; 

 vitelline of hen's egg, 13 15 



Membrane bones, 242 ; of skull, 

 chick, 246 



Membrane of Eeissner, mamma- 

 lia, 397 



Membrane of Descemet, 389 



Membrane of Corti, and tectoria 

 mammalia, 395 



Membranous labyrinth, chick, 

 158 



Meniscus of birds, 210 



Meroblastic 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, 

 57j 59 ; of ^'I'ea opaca in chick, 

 65 ; splitting of, in chick, 68 ; of 

 trunk of emlirj-o chick, 18.S 

 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 



Mesolilastic somites, formation of 

 in chick, 70; of chick, 81, 185 

 187, 204 208 

 Mesocardium of chick, 88 ; forma- 

 tion of, 264 

 Mesogastrium, chick, 182 

 Mesonephros of chick, 212 



