INDEX 



633 



Choanen, primitive, 550 



Chondrification first occurrence in head skele- 

 ton, 156 

 Chondrocranium, 157 



ossification of, 158 

 Chorda (see also Notochord] 



dorsalis, 146 



tympani, 432, 468 

 Chordae tendinae, 206 

 Chordal sheath, 146 

 Chorio epitheliomata, 402 

 Chorioid, defective pigmentation of, 415 



fissure, of pallium, 517 



fold, 517 



of rhombencephalon, 513 



of eye, 545 



plexus of fourth ventricle, 423, 483, 495 

 of lateral ventricle, 423, 513, 513, 517 

 of third ventricle, 423, 513 

 Chorioidal fissure of eye, 537, 545 

 Chorion, 100, 101, 102, 108 



function of, 571 



in chick, 571 



in Mammals, 572, 574 



in man, 583 



relation of, to allantois, 583 

 Chorion frondosum, 586, 588 



Iseve, 586, 588 



Chorionic villi, 101, 578, 586 

 Chromaflin cells, 396 



granules, 396 



Chromatin as inheritance material, 9 

 Chromophilic bodies, 448, 459 

 Chromosomes, 9, 12, 16, 17, 18. 19, 20, 21, 22, 

 23, 27 



accessory, 22, 23 



diploid number of, n, 16 



haploid number of, 12, 16 



identity of, 21 



qualitative differences in, 21 



segregation of, 21 



synapsis of, 12, 16, 21 

 Chryptorehism, 402 

 Cilia, of the cells of gastrula, 40 

 Ciliary body of eye, 547 



ganglion, 471 

 Circulation, changes in, at birth, 234 



allantoic, 292, 209 



foetal, course of, 234 



reversal of, 565 



vitelline, 189 

 Circulus arteriosus, 212 

 Cisterna chyli, 244 



Clark, W. C., concerning the joint capsule 



and cavity, 177 

 Clarke's columns, 436, 481 

 Clava, 494 

 Clavicle, 168 

 Cleavage (segmentation), in Amphioxus, 35, 37 



in the chick, 67, 68, 69 

 . in the frog, 51, 53 



in Mammals, 85 



of ova of opossum, 85, 87 

 of mouse, 85, 86 

 of rat, 85, 87 



regular, 36 



total, 36 



Cleft palate, 180, 616, 617 

 Climbing fibers, 500 

 Clitoris, the, 394 

 Cloaca, the, 310, 370 



persistence of, 326 

 Cloacal membrane, 370 

 Closing plate, 593 

 Coccygeal gland, 254 

 Cochlea, 430, 437 

 Cochlear ganglion cells, 559 

 of VIII nerve, 469 



part of acoustic (auditory) nerve, 432 



pouch, 553 



terminal nuclei, 436 

 Ccelom, 46, 60, 65, 80, 81, 96, 98, 104, 340 



embryonic, 340 

 Coelomic space, 45 

 Collaterals, 474, 499, 526 

 Colloid secretion of thyreoid gland, 300 

 Colon, the, 307 



ascending, 309 



descending, 309 



sigmoid, 309 



transverse, 309 

 Colostrum corpuscles, 414 

 Column cells, 473 



heteromeric, 473 



tautomeric, 473 

 Columns, anterior white, 477 



dorsal gray (posterior horn), 428, 477 



posterior white, 460, 473, 477 

 Columns of Bertini, 367 



of Burdach, 429, 441, 388 

 nuclei of, 429, 441, 490 



of Goll, 429, 441, 480, 488 

 nuclei of, 429, 441, 490 

 Commissura habenularis, 425, 508 



mollis (see Massa intermedia), 505 

 Commissural column cells, 473 



