462 



INDEX 



(Amphioxus, pages 1-61; frog, 62-228, 



hedgehog, blastodermic vesicle, 388 ; 

 cleavage, 381 ; notochordal canal, 

 398; trophoblast, 389; trophoderm, 

 422; yolk-sac, 433 



Held, 142 



hemispheres, cerebral, 129, 131, 133 : 

 305, 306 



Hensen's node (knot), 252, 253, 257, 

 260 : 394, 395, 396 



hernia, intestinal, 408 



Hertwig, 439 



Hill, 303: 419 



hind-brain, 129, 131, 132, 133: 262, 

 271, 276, 303; - - gut, 122, 169- 

 170: 279, 296, 296, 327, 334 



hippopotamus, placentation, 440 



His's Embryo M, 403, 404 



horse, gestation, 369; implantation, 

 421; placentation, 439, 440; yolk- 

 sac, 433 



Hoyer, 190 



Hubrecht, 385, 421 



human embryo, early development, 

 399, ff., 400, 401; - -ex- 



ternal form, 399, ff.; - 

 face, 411, #., 412, 413; - 

 measurement of, 407; - 



- structure at 2.6 mm., 405 ff., 

 405. See also man. 



humor, vitreous, 148: 320 



Huxley, 439 



hydatid, 372 



hyobranchial, apparatus, 217, 218, 

 218, 219; - - pouch, 162 



hyoid arch, 65, 122, 160, 160: 330; 

 cornu, 218, 219 



hyomandibular pouch, 160, 160, 161, 

 162:324,330 



hyperbranchial groove, 44 



hypoblast, see endoderm. 



hypobranchial plate, 217, 218, 218 



hypochordal rod (hypochorda), 169, 

 194, 204 



hypophysis, 118, 121, 130, 131, 132, 

 133, 166 : 304, 305, 327, 329 



Hyrax, placentation, 440 



Ilium, 221 



implantation, 378, 421 ff.; 



central, eccentric, interstitial, 421; 



- of human "ovum," 442 

 incubation, 231 

 incus, 325 

 indifferent period, genitalia, 416; 



- gonad, 361-362 

 infundibulum (brain), 38, 39: 130, 



130, 131, 133, 145, 160: 262, 282, 



304, 305, 306 ; - - of oviduct, 203 : 



235, 236, 360: 371,372;- 



during ovulation, 378 



chick, 229-367; mammal, 368-454.) 



inner cell mass, 382, 383, 384, 385, 



386, 390 



Insectivora, amnion, 385, 424; blas- 

 todermic vesicle, 385, 386, 387; 

 cleavage, 381; germ layers, 385; 

 implantation, 421; placentation, 

 440; trophoblast, 389 

 integumentary organs, 156 

 interamnionic cavity, 389, 391 

 interauricular septum, 177: 338, 339 

 intermediate cell mass, 173, 193 : 265- 



266, 265: 355 

 internasal plate (septum), 210, 211, 



215 



intersomitic furrow, 263 

 interventricular, foramen, 340; - 



septum, 338, 340 

 intervillous cavity, 442, 447, 449 

 intestinal, cseca, 336; - - groove, 

 281, 281; - -hernia, 408; - 

 portal, anterior, 261, 262, 266, 269, 

 272, 276, 278, 282, 291, 304, 345 ; 



- posterior, 280 

 intestine, 122, 168-169: 335 ff., 335, 



348 



intra-placental cavity, 446, 449 

 imagination, 15 ff.: 99 ff., 98, 107, 



llljf. 



inversion, of germ layers, 389, 391 

 involution, 15 ff.: 249 

 iris, 147, 149: 317, 319, 321 

 ischium, 221 

 isthmus (brain), 262, 283, 285, 304, 



307; - - (oviducal), 235, 236 

 iter, 307 



Jackson, 408, 411 



Jacobson's organ, 154, 155 



jaws, 325, 327, 328: 412, 412, 413, 



413; - -articulation, 216; - 



horny, 159, 166 

 jejunum, 329, 336 

 Jenkinson, 88, 89 

 junction, zone of, 247, 258, 277, 277 



Keibel andElze's Embryo, Klb., 401, 



402 



kidney, 359; - -head, 193 

 Kirkham, 378 

 knot, choroid, 149; - - Hensen's 



(primitive), 252, 253, 257, 260: 



394, 395, 396 

 Knower, 189 

 Kolliker, 439 

 Kollmann's Embryo, Bulle, 401, 402; 



- 2.5 mm., 402 



Labia, majora and minora, 415, 416 , 

 417 



