CONTENTS OF VOLUME IT. ix 



PAKT II. ORGANOGENY. 



INTRODUCTION. Pp. 323, 324. 



CHAPTER XIV. THE EPIDERMIS AND ITS DERIVATIVES. Pp. 325329. 



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

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



CHAPTER XV. THE NERVOUS SYSTEM. Pp. 330 38G. 



The origin of the nervous system, pp. 330335. Nervous system of the 

 Invertehrata, 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. 348352. Mid-brain, pp. 352, 353. General development of 

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

 358360. Cerebral Hemispheres, pp. 360366. Olfactory lobes, p. 366. General 

 conclusions as to the central nervous system of the Vertebrata, pp. 366368. 

 Development of the cranial and S2)inal nerves, pp. 369 383. Spinal nerves, pp. 369 

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



CHAPTER XYI. ORGANS OF VISION. Pp. 387421. 



Ccelenterata, p. 388. Mollusca, pp. 388394. Chastopoda, p. 394. Chastog- 

 natha, pp. 394, 395. Arthropoda, pp. 395398. Vertebrata general, pp. 398 

 403. Ketina, 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- 

 mocoete 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. 422438. General structure of auditory organs, pp. 

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

 of the Mollusca, pp. 424425. Auditory organs of the Crustacea, p. 425. Audi- 

 tory organs of the Vcrtelrata, pp. 42.5 436. 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. 436437. Bibliography of Auditory organs, pp. 437438. 



Olfactory organs, PP- 438443. Bibliography of Olfactory organs, p. 443. 

 Sense organs Of the lateral line, PP- 4 A3 445. Bibliography of sense organs 

 of lateral line, p. 446. 



CHAPTER XVIII. THE NOTOCHORD, THE VERTEBRAL COLUMN, THE RIBS, 



AND THE STERNUM. Pp. 447 4G4. 



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 



