480 



INDEX. 



Limbs, of chick, 198 200, 233 ; 

 of rabbit, 334 ; of human em- 

 bryo, 339 ; mammalia, 406 



Liver of chick, 178 181 ; mam- 

 malia, 419 



Lumbar veins, mammalia, 412 



Lungs of chick, 176 178, 267 ; 

 mammalia, 418 



M 



Male pronucleus, 17 



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, 403404 



Manubrium of malleus, 403 



Marsupialia, foetal membranes of, 



352 



Marsupium, 308 

 Maturation 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, 1 66; of mammal, 397 

 Meatus venosus, 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, 



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 pupillaris 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 Keissner, mamma- 

 lia, 397 



Membrane of Descemet, 389 

 Membrane of Corti, and tectoria 



mammalia, 395 

 Membranous labyrinth, chick, 



15.8 



Meniscus of birds, 210 

 Meroblastic segmentation, 18 

 Mesenteric veins of chick, 228, 



288290 



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, 

 57, 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 



Mesoblastic 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 



