666 



INDEX. 



Sense organs, special, 573 

 anomalies of, 601 

 ear, 592 



eye, 573 



nose, 589 



practical suggestions for study of, 602 

 Septa, the, 229 



anomalies of, 285 

 Septal marginal layer, 521 

 Septum aorticum, 230 



atriorum, 229 



medullas, 521 



pellucidum, 476, 559 



spurium, 231 



superius, 229 



transversum (see also Diaphragm), 



374, 376, 379 

 practical suggestions for study of, 



3.8s 

 ventriculorum, 229 

 Serial sections, 634 

 Serosa, 107 

 Sertoli, cells of, 2 1 

 Sex cells, 407 

 cords, 408 



determination of, 415 

 Sexual elements, 10, 407 

 Sheaths, myelin (medullary), 485, 501 



neurilemma, 485 

 Sherrington, concerning effectors and 



receptors, 455 

 Shoulder girdle, 203 

 Siamese twins, 609 

 Sigmoid colon, 341 

 mesocolon, 383 

 Sinus, cavernous, 2 54 

 confluence of, 255 

 coronarius, 231, 256 

 frontal, 590 

 maxillary, 590 

 petrosal, 2 54 

 sagittal, 254, 255 

 sphenoidal, 590 

 terminalis, 237 

 transverse, 2 54 

 venosus, 227, 231 

 Sinusoids, 259, 263, 347, 348 

 Sinusoidal circulation, 348 

 Situs viscerum inversus, 355 

 Skeletal musculature, see Musculature, 

 skeletal 

 system, anomalies of, 213 

 appendicular skeleton, 202 

 axial skeleton, 182 

 development of the, 165 



of joints, 209 

 head skeleton, 190 

 notochord, 182 

 practical suggestions for study of, 



217 

 ribs, 188 

 sternum, 189 

 vertebra?, 183 

 Skeleton, axial (see also Axial skeleton) 

 182 

 appendicular (see also Appendicular 

 skeleton), 202 



Skin, the, 444 



anomalies of, 451 



dermis, 445 



epidermis, 444 



glands of, 449 



pigment of, 445 



practical suggestions for study of, 4 53 

 Skull, defects of, 616 



development of, 190 

 Smegma embryonum, 449 

 Smith, G. Elliott, concerning archipallium, 



476 

 Smooth muscle, 311 



histogenesis of, 312 

 Sobotta, concerning maturation in the 



mouse, 21 

 Sole plate, 446 



Somassthetic area of pallium, 477, 564, 565 

 Somatic area (see also Pallium, precentral 

 area), 565 



segmentation, 457, 467 



structures, 465 

 Somatochrome cells, 496 

 Somatopleure, 75, 109, 372 

 Somites, mesodermic, 72 

 Spencer and Darwin, concerning ferti- 

 lization, 40 

 Sperm nucleus, 34, 37 



method for study of, 41 

 Spermatids, 2 1 

 Spermatocytes, 2 1 



primary, 24 



secondary, 24 

 Spermatogenic cells, 21 

 Spermatogenesis, 21 

 Spermatogonia, 21, 414 

 Spermatozoon, the, 13 



diagram of, 14 



discovery of, XIII 



practical suggestions for the study of, 



15 

 significance of, 1 5 

 flagellate, 13 

 Sphenoid bone, 195, 197 

 Sphenomandibular ligament, 200 

 Sphenopagus, 612 

 Sphenopalatine ganglion, 508 

 Spigelius, lobe of, 3 50 

 Spina bifida, 617, 618, 619 

 cystica, 617 

 occulta, 618 

 Spinal accessory, XI, nerve, 471, 502 

 Spinal cord, the, 460, 464, 480, 513 

 Clarke's column, 473, 518 

 dorsal funiculi, 497, 510, 514 

 gray column, 465, 515 

 septum of, 517 

 growth of, 519 

 ventral funiculi, 514 

 gray column, 465 

 lack of, 618 

 malformations of, 617 

 ventro-lateral funiculus, 514 

 ganglion, 497, 498 



cells, unipolarization of, 498 

 meningocele, 618 

 V, 467, 508, 525 



