Contents. XIII 



Figure Page 



307. Vertical Section through the Place of Entrance of the Optic Nerve. 



After a Specimen of Alex. Iwanoff I. 227 



308. The Auricle, Auricula 228 



309. The Muscles of the Auricle 



310. The External Auditory Canal and the Tympanic Cavity in section . . 229 



311. The Incisurae Santorini of the Cartilaginous Auditory Canal .... 



312. The Membrana tympani, from the outside, after partial removal of the 



bony meatus . . .' 230 



313. The Membrana tympani and the Ossicula auditus of a child, from the 



inner side 



314. The Tympanic Cavity and Eustachian Tube in section 231 



315. The Inner Wall of the Tympanic Cavity. Magn. = 3 



316. The Membrana tympani and Eustachian Tube from the inner side. After 



a specimen of A. Politzer 232 



317. The Ossicula audttus, from the outside. Magii. 3 233 



318. The Tympanic Cavity and Ossicula auditus, from above 



319. The Osseous Labyrinth, from before. Magn. = 3 234 



320. The Osseous Labyrinth, laid open from before. Magn. = 3 .... 



321. The Cochlea, laid open vertically to the axis of the Petrous Portion 



of the Temporal Bone. Magn. = 5 235 



322. Section of a Spiral Canal. Diagrammatic 



323. The Organ of Corti seen from above. Diagrammatic 236 



324. The Organ of Corti in Section. Diagrammatic 



325. The Membranous Labyrinth. Diagrammatic 237 



326. The End of the Internal Auditory Meatus. Magn. = 3 



327. The Bony Labyrinth from behind. Magn. = 3 238 



IV. Viscera. Topography. 



328. Diagram of the Digestive Apparatus II. 3 



329. Median Section of the Nasal Fossa, the Mouth, Pharynx and Larynx 4 



330. Frontal View of the Opened Oral Cavity 5 



331. Frontal Section of the Base of the Cranium and the Face immediately 



behind the posterior border of the Septum narium. After H. v. Luschka 6 



332. The Muscles of the Soft Palate ; view from before 7 



333. The Muscles of the Soft Palate; view from behind 8 



334. Incisor, Bicuspid and Molar Teeth, in section 9 



335. The Right Permanent Teeth, Denies permanentes 10 



336. The Right Milk Teeth, Denies lactei sen caduci 11 



337. The Teeth of a Child with the Calcified Parts of the Permanent Teeth 



Exposed 



338. a. Diagram of the Eruption of the Milk Teeth. After H. Welcker . 12 



338. b. Diagram of the Eruption of the Permanent Teeth. After H. W e 1 c k e r 



339. The Salivary Glands, G-landulae salivales 13 



340. Lobules of the Parotid Gland, natural size. After a specimen of II g . 14 



341. The Upper Surface of the Tongue 15 



342. The Under Surface of the Tongue 16 



