CONTENTS. i\ 



OF THE HIGHER ORGANS OF SENSE, pp. 351-422. 

 I.— OF THE ORGAN OF VISION, pp. 351—402. 



PAGE 



$ 224. Its parts . . . . . . .351 



A. Of the Eye-ball, pp. 351—391. 



$ 225. Fibrous tunic of the eye . . . . . 351 



§ 226. Vascular tunic . . . . . .360 



§ 227. Nervous tunic . . ' . . . . 368 



$ 228. The lens 382 



§ 229. The vitreous humor . . . . . . 386 



B. Accessory Organs, pp. 391 — 394. 



$ 230. Eye-lids, conjunctiva, lacrymal apparatus . . . 391 



§ 231. Physiological remarks . . . . . 395 



II.— OF THE ORGAN OF HEARING, pp. 403—415. 



§ 232. ... ... . 403 



§ 233. External and middle ear . . . . . .4^)3 



§ 234. The vestibule and semicircular canals . . . . 405 



§ 235. Cochlea . . . . . . .407 



III.— OF THE OLFACTORY ORGAN, pp. 415—422. 



$ 236. Its parts . . . . . . . 415 



APPENDIX. 



§ 1. Corpuscula tactns and Pacinian bodies . . . . 423 



§ 2. Malpighian bodies of the spleen ..... 425 



§ 3. Corpora lutea . . . . . . , 426 



§ 4. Development of the teeth ...... 428 



