668 



INDEX. 



Primitive segments of the trunk, 342. 



spermatic cells, 374, 382. 



streak, 121, 133, 135, 282 ?* also 



Blastopore. 

 Primordial bones, 615. 



- bones, enumeration of, 619. 



cranium, 605. 



cranium, cartilaginous, 595, 607. 



cranium, chord al, 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. 

 Proto vertebrae, 162, 598 see also Pri- 

 mitive segments. 



Pterygoid process of sphenoid, 619. 

 Pubic bone, 639. 

 Pulmonary alveoli, 323. 



artery, 564. 

 Pupil, 478. 



K. 



Radiations of protoplasm, 40, 51, 



Radius, 64. 



Rathke's pocket, 285, 437. 



pouch, 285, 437. 



trabeculae cranii, 606. 

 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 testis, 384. 

 Retina, 480. 

 Ribs, 6CO. 

 Ring-lobe, 442. 

 Roots of attachment of the chorion, 



260. 

 Round ligament, ?86. 



Rusconian anus, 88. 



digestive cavity, 88, 



S. 



Sacculus, 496. 

 Sacral ribs, 602. 

 Sacrum, 602. 

 Salivary glands, 305. 

 Scala tympani, 506. 



vestibuli, 506. 

 Scapula, 638. 

 Schizocoel, 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 placentas, 262. 

 Septum atriorum, 558. 



trans versum, 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, G38. 

 Sinus cervicalis (precervicalis), 289. 



coronarius., 565, 581. 



ethmoid ales, 518. 



frontales, 518. 



genitalis, 396. 



occipitales, 518. 



- prostaticus, 389. 



reuniens, 558. 



sphenoidales, 518. 



v- superior of vertical semicircular 

 canals, 496. 



terminalis, 184,549. 



urogenitalis, 398. 



