GG8 



INDEX. 



Primitive segments of the trunk, 842. 



- spermatic cells, 374, 382. 



- streak, 121, 133,135, 2*2 see also 



Blastopore. 

 Primordial bones, 615. 



- bones, enumeration of, 619. 



- cranium, (505. 



- 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. 

 Proto vertebras, 162, 598 see also Pri- 

 mitive segments. 



Pterygoid process of sphenoid, 619. 

 Pubic bone, 639. 

 Pulmonary alveoli, 323. 



- artery, 564. 

 Pupil, 478. 



R. 



Radiations of protoplasm, 40, 51. 

 Radius, 64. 



Rathke's pocket, 285, 437. 

 pouch, 285, 437. 



- trabeculse 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 testis, 384. 

 Retina, 480. 

 Ribs, 600. 

 Ring-lobe, 442. 

 Roots of attachment of the chorion, 



260. 

 Round ligament, 386. 



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. 



- 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. 



coroiiarius, 565, 581. 



- ethmoidales, 518. 



- frontales, 518. 



- genitalis. 396. 



- occipitales, 518. 



- prostaticus, 389. 



reuniens, 558. 



- sphenoidales, 518. 



- superior of vertical semicircular 



canals, 496. 



terminalis, 184, 549. 



urogenitalis, 398. 



