372 



INDEX. 



Bacilliform bodies, 307 



Beale's carmine, 369 



Biogenetic law, 43 



Blastocyst. See Blastodermic vesicles. 



Blastodermic vesicles, 60 



fluid contents of, 61 

 hypothetical development, 116 

 in alcohol, 306 

 in primates, 116 

 inner layer of, 60 

 inner mass of, 61 

 outer layer of, 60 

 rabbit, 305 



five days, 306 

 six days, 308 

 seven days, 309 

 subzonal layer of, 58 

 trophoblast of, 61 

 Blastomeres, isolated, 28 

 Blastopore, 66 

 Blind, animals born, 260 

 Blood, chick, 295 

 origin of, 90 

 pig, 12 mm., 1S1 

 production of, in liver, 252 

 Blood-corpuscles, 93 

 Blood-islands, 91 

 Blood-spaces, intervillous, of man, 126 



of monkey, 122 

 Blood-vessels, definition of, 90 

 development of, in chick, 91 

 development of, in mammals, 92 

 hist, 88 y 



growth into the embryo, 92 

 large size of, 164 

 origin of, 90 

 structure of, chick, 295 

 Body, general morphology, 22 

 Body-cavity (splanchnoccele), 82 

 of vertebrates, 20 

 primitive, 35 

 Body-stalk, an I age of, 117 

 of gibbon, 127 



relation to umbilical cord, 109 

 relations of allantois to, 103 

 vessels of, 104 

 Body-wall, clnsure of, in chick, 287 



of vertebrates, 22 

 Borax carmine, 367 

 Bom's method of reconstruction, 358 

 Boucbon vaginal, 312 

 Brachial plexus, pig, 12 mm., 196, 199 

 Brain, chick, in surface view, 273 

 Brsl differentiation, 73 

 pig, 9 mm., 222 

 pig, 12 mm., 175 



in sagittal section, 205 

 pig, 24 mm., 263 

 Branchial arches. See Gill arches. 

 Bronchi, pig, 17 mm. ,235 



Caduca, 118 



Canal, auricular, 199 



hyaloid, of eye, 263 



of Schlemm, 262 

 Carmine, Beale's, 369 



borax, 367 

 Carnivora, 25 



Carotids, general account, 164 

 Cartilage, 244 



origin of, 233 



sphenoidal, 265 



Cavernous layer of decidua, 128 i« 

 Cavity, hyoid, 83 *" 



mandibular, 83 

 premandibular, 83 

 Cell-death, direct, 31 



indirect, 31 

 Cells, early condition, chick, 293 

 embryonic, 33 

 germ, defined, 26 

 mass, intermediate, So 

 removal of, 32 

 somatic, 27 

 Central artery of retina, 263 

 Cephalochorda, 25 

 Cerebellum, pig, 12 mm., 207 



pig, 24 mm., 266 

 Cervical sinus, 142, 143, 144 

 in pig, 161 

 pig, 9 mm., 217 

 pig, 12 mm., 191, 208 

 Chamber, anterior, of eye, 261 

 Cheiroptera, 25 

 Cbiasma, optic, anlage of, 207 



pig, 24 mm., 265 

 Chick compared with rabbit, 297 



histological differentiation of, 293 

 methods of obtaining, 269 

 methods of preservation, 271 

 section of, longitudinal, 297 

 serial sections of, 271 

 with seven segments, 295 

 with twenty-four segments, 272 

 with twenty-eight segments, sections of, 274 

 with three gill clefts, 272 

 Choanal, internal, 193 

 Chondrostyle, 266 

 Chorda dorsalis, 67 

 Chorion, anlage of, 78 

 chick, 282 

 frondosum, 121 

 human, with trophoblast, 342 

 Ia:ve, 1 21 



united with decidua reflexa, 326 

 united with decidua vera, 327 

 mesoderm of, ^^^, 342 

 structure of, 331, 341 

 Chorionic villi, general account, 345 

 Choroid plexus of hind-brain, 266 

 of lateral ventricles, 257 

 pig, 24 mm., 265 

 Chromosomes, number of, 54 



