- 



398 



Leucocytes, general account, 96 

 Limbs, pig, 9.0 mm., 257 

 f 2 .o mm., 279 

 20. o mm., 318 

 vertebrates, 4 

 Liver, chick, 207 



general account, 107 

 pig, 9. o mm., 252 

 12 . o mm., 288 

 20. o mm., 324 

 24.0 mm., 337 

 vertebrates, 5 

 Lungs, pig, 9.0 mm., 252 

 12 .o mm., 285 

 17.0 mm., 306 

 20. o mm., 317, 322 

 Lutein, 35 

 Lymph-glands, 105 

 Lymph-sacs, 105 

 Lymphatic spaces, pig, 20.0 mm., 315 



system, 105 

 Lyons blue, 383 



Mblleus, 330 

 Mallory's stain, 385 

 Mammary anlage, 320 



bodies, 292 



Mandibular cavity, 87 

 Marsipobranchs, 7 

 Marsupials, 8 

 Mass and surface, 20 

 Maxillary process, 224 



pig, 20. o mm., 325 

 Maxillo-turbinal fold, '311, 326 

 Meatus, external auditory, 271 

 Meckel's cartilage, 329 



diverticulum, 57 

 Mediastinum, 317 

 Medulla oblongata, pig, 12.0 mm., 296 



20. o mm., 336 

 Medullary canal, differentiation, 7 r 



origin, 69 



stratification, 74 



structure, 69 

 groove, chick, 178, 180, 194 



human, 136 



origin, 68 

 plate, human, 134 



origin, 67 



Membrana serosa, 64 

 Menstruation, 339 

 Mesectoderm, 185 

 Mesencephalon, chick, 180 



INDEX. 



Mesenchyma, denned, 18 



histogenesis, 89 



pig, 12 . o mm., 266 

 17.0 mm., 303 

 Mesoderm, chick, 218 



defined, 18 



early history, 79 



origin, 51 



somatic, defined, 81 



splanchnic, 192 

 defined, 81 



Mesonephros, defined, 109 

 Mesothelium, origin, 81 

 Metamerism, 2 

 Metanephros, origin, no 

 Metencephalon, origin, 74 

 Microtomes, 389 



knives for, 391 

 Mid-brain, chick, r8o, 184 



differentiation, 74 



origin, 72 



pig, 9.0 mm., 253 



12 . o mm., 292 

 Milk-line, 225, 226 

 Monkey, ovum in second stage, 127 

 Monotremes, 8 

 Mouth of vertebrates, 5 

 Mullerian ducts, pig, 20.0 mm., 317 

 Muscle-plate, 86 



pig, 9.0 mm., 254 

 Muscles, hyoglossal, 329 



of eye, 329 



origin, 89 



Myelencephalon, origin, 74 

 Myotomes, pig, 12.0 rnm., 273 



Nasal pits, 76 



pig, 12 . o mm., 277 

 Naso-turbinal fold, 326 

 Neck-bend, 223, 292 

 Necrobiosis, 15 

 Nephrotome, chick, 193, 212 



differentiation, 86 



origin, 85 

 Nerve fibers, pig, 12.0 mm., 263 



roots, origin of, 270, 280 

 Nerves, acoustic, 295, 298 ^ r 



cervical, 273, 275, 278 



facial, pig, 12.0 mm., 271, 295, 298 



fourth, pig, 12.0 mm., 264, 268 



glosso-pharyngeal, 274, 295 



hypoglossal, 277, 296 



inferior maxillary, 274 



