CONTENTS OF VOLUME IL ix 



PART II. ORGANOGENY. 



Introduction. Pp. 323, 324. 



Chapter XIY. The Epidermis and its Derivatives. Pp. 325 — 329. 



Protective epidermic structures, pp. 325—328. Dermal skeletal structures, 

 p. 328. Glands, pp. 328, 329. 



Chapter XV. The Nervous System. Pp. 330—386. 



The origin of the nervous system, pp. 330—335. Nervous system of the 

 Invertebrata, pp. 335 — 341. Central nervous system of the Vertebrata, pp. 342 — 

 368. Spinal chord, pp. 342 — 345. General development of the brain, pp. 345 — 

 348. Hind-brain, pp. 348—352. Mid-brain, pp. 352, 353. General development of 

 fore-brain, pp. 353, 354. Thalamencephalon, pp. 354 — 358. Pituitary body, pp. 

 358—360. Cerebral Hemispheres, pp. 360—366. Olfactory lobes, p. 366. General 

 conclusions as to the central nervous system of the Vertebrata, pp. 366—368. 

 Development of the cranial and spinal nerves, pp. 369—383. Spinal nerves, pp. 369 

 — 374. Cranial nerves, pp. 374—383. Sympathetic nervous system,, pp. 384 — 386. 



Chapter XVI. Organs op Vision. Pp. 387 — 421. 



Ccelenterata, p. 388. MoUusca, pp. 388 — 394. Chaetopoda, p. 394. Chsetog- 

 natha, pp. 394, 395. Arthropoda, pp. 395—398. Vertebrata general, pp. 398— 

 403. Retina, pp. 404, 405. Optic nerve, pp. 405, 406. Choroid fissure, p. 406. 

 Lens, pp. 406, 407. Vitreous humour, p. 407. Cornea, pp. 407 — 409. Aqueous 

 humour, p. 409. Comparative development of Vertebrate eye, pp. 409 — 416. Am- 

 moccete eye, pp. 409, 410. Optic vesicle, p. 410. Lens, p. 410. Cornea, p. 411. 

 Optic nerve and choroid fissure, pp. 411—416. Iris and ciliary processes, p. 416. 

 Accessory organs connected with the eye, p. 416. Eyelids, pp. 416, 417. Lacry- 

 mal glands, p. 417. Lacrymal duct, pp. 417, 418. Eye of the Tunicata, pp. 418 — 

 420. Accessory eyes in the Vertebrata, p. 420. 



Chapter XVII. Auditory organ, Olfactory organ, and Sense organs 

 OF the Lateral line. Pp. 422 — 446. 



Auditory organs, pp. 422 — 438. General structure of auditory organs, pp. 

 422 — 423. Auditory organs of the Ccelenterata, pp. 423 — 424. Auditory organs 

 of the MoUusca, pp. 424 — 425. Auditory organs of the Crustacea, p. 425. Audi- 

 tory organs of the Vertebrata, pp. 425—436. Auditory vesicle, pp. 425 — 432. 

 Organ of Corti, pp. 432 — 434. Accessory structures connected with the organ of 

 hearing of terrestrial vertebrata, pp. 435 — 436. Auditory organ of the Tunicata, 

 pp. 436—437. Bibliography of Auditory organs, pp. 437—438. 



Olfactory organs, pp. 438 — 443. Bibliography of Olfactory organs, p. 443. 

 Sense organs of the lateral line, pp. 413—445. Bibliography of sense organs 

 of lateral line, p. 446. 



Chapter XVIII. The notochord, the vertebral column, the ribs, 

 AND the sternum. Pp. 447 — 464. 

 Introductory remarks on the origin of the skeleton, pp. 447 — 449. Bibliography 

 of the origin of the skeleton, p. 449. The notochord and its cartilaginous sheath 



