Of the E A R. 



440. Of the external parts of the ear, 

 and its mufcles. 



Of the Meatus auditorius exter- 

 nus. 



441. Of the Glandulcz Ceruminofce. 

 4.4.2. Of the Membrana Tympani. 



Its ftru&ure, fituation, attach* 

 ments, &c. 



443. Of the Officula Auditus, and the 

 fmall mufcles attached to them* 



444. Of the Labyrinth of the ear. 



445' Veftibulum, fcmicircular canals, 

 and cochlea. 

 Of the two Feneftrcz. 

 Of the maftoid cells, &c. 



446. Of the Tuba Eujlachiana, 



447, Of the auditory nerves, and their 

 diftribution. 



Of 



