668 



INDEX. 



Primitive segments of the trunk, 342. 



spermatic cells, 374, 382. 



streak, 121, 133, 135, 2*2 gee also 



Blastopore. 

 Primordial bones, 615. 



bones, enumeration of, 619. 



cranium, 605. 



cranium, cartilaginous, 595, 607. 



cranium, chordal 607. 



cranium, evertebral, 607. 



cranium, membranous, 595, 605. 



cranium, prechordal, 607. 



cranium, vertebral, 607. 

 Principles of development, 76. 

 Proamnion, 230. 



Processus ciliares, 479. 



- pinealis, 432. 



styloideus of petrosal, 613. 



styloideus of radius and ulna, 644. 



vaginalis peritonei, 391, 396. 

 Prochorion, 224. 



Pronephric duct, 358, 359. 

 Pronephron, 353. 

 Pronucleus, 32. 



female, 32 see also Egg-nucleus. 



- male, 40 see also Sperm-nucleus. 

 Prostata, 402. 



Prostate gland, 402. 

 Protoplasmic radiation, 40, 51. 

 Protovertebrae, 162, 598 see also Pri- 

 mitive segments. 



Pterygoid process of sphenoid, 619. 

 Pubic bone, 639. 

 IMmonary alveoli, 323. 



artery, 564. 

 Pupil, 478. 



R. 



Radiations of protoplasm, 40, 51. 



Radius, 64. 



Rathke's pocket, 285, 437. 



pouch, 285, 437. 



trabeculae cranii, G06. 

 Rauber's layer, 102. 

 Receptive elevation, 39. 

 Recessus labyrinthi, 493. 

 Regio olfactoria, 515. 



respiratoria, 515. 

 Reichert's cartilage, 613. 

 Re-segmentation of vertebral column. 



598. 



Reserve material, 21. 

 Rete tcstis, 384. 

 Retina, 480. 

 Ribs, 6CO. 

 Ring-lobe, 442. 

 Roots of attachment of the chorion, 



260. 

 Round ligament, ?86. 



Rusconian anus, 88. 

 digestive cavity, 88, 



Sacculus, 496. 

 Sacral ribs, 602. 

 Sacrum, 602. 

 Salivary glands, 305. 

 Scala tympani, 506. 



vestibuli, 506. 

 Scapula, 638. 

 Schizoccel, 108. 

 Sclerotica, 471. 

 Sclerotome, 172, 348, 362. 

 Scrotum, 392, 402. 

 Sebaceous glands, 528. 

 Seessel's pocket, 594. 

 Segmental theory of skull, 631. 

 Segmentation see Cleavage. 

 Sella turcica, 438, 607. 

 Semicircular canals, bony, 503. 



membranous, 494. 

 Semilunar valves, 564. 

 Seminal ampullae, 383. 



mother-cells, 383. 



tubules, 384. 



see also Spermatic. 

 Septa placentae, 262. 

 Septum atriorum, 558. 



transversum, 567, 577. 



ventriculorum, 560. 



Sexual cords of the mesonephros. 381- 

 383, 404. 



eminence, 399. 



folds, 400. 



glands see Sexual organs. 



groove, 400. 



organs, 374. 



- organs, external, 397. 



- part of mesonephros, 387, 394. 



ridge, 399. 



Sheath of the root of hair, 525. 

 Shell of Hen's egg, 17. 

 Shell-membrane, 17. 

 Shoulder-blade, 638. 

 Shoulder-girdle, 638. 

 Sinus cervicalis (precervicalis), 289. 



coronarius, 565, 581. 



ethmoidales, 518. 



frontales, 518. 



- genitalis, 396. 



- occipitales, 518. 



- prostaticus, 389. 



reunions, 558. 



sphenoidales, 518. 



- superior of vertical semicircular 



canals, 496. 



terminalis, 184,549. 



urogenitalis, 398. 



