XIV 



LIST OF ILLUSTRATIONS 



FIGURE PAGE 



213. The skull, transverse section just 



behind posterior nares, seen from 



in front 295 



214. Transverse section through half of 



face 296 



215. The ethmoid bone, anterior aspect . 297 



216. The ethmoid bone, superior surface, 



parts numbered 297 



217. The ethmoid and vomer, lower as- 



pect 298 



218. Eight nasal chamber, side view 



from within 300 



219. Longitudinal vertical section of 



nasal cavity 300 



220. Transverse vertical section through 



half of face ,301 



221. Transverse vertical section through 



half of face, anterior to second 

 premolar 302 



222. Lateral ethmoid, external surface, 



parts numbered, larger scrolls 

 shaded 303 



223. First piece of lateral ethmoid, outer 



aspect 303 



224. First piece of lateral ethmoid, inner 



surface 303 



225. Second piece of lateral ethmoid, 



outer aspect 304 



226. Second piece of lateral ethmoid, 



inner surface 304 



227. Mesial piece of lateral ethmoid, 



inner aspect 304 



228. Mesial piece of lateral ethmoid, 



outer aspect 305 



229. Third piece of lateral ethmoid, 



outer aspect 306 



230. Third .piece of lateral ethmoid, 



inner surface 306 



231. Fourth piece of lateral ethmoid, 



outer aspect 306 



232. Transverse vertical section through 



half of face anterior to infraor- 

 bital foramen 307 



233. Fourth piece of lateral ethmoid, 



inner aspect 308 



234. Fifth piece of lateral ethmoid, outer 



aspect 308 



235. Fifth piece of lateral ethmoid, inner 



surface 308 



236. Sixth piece of lateral ethmoid, outer 



aspect 309 



237. Transverse section through half of 



face 309 



238. Sixth piece of lateral ethmoid, inner 



surface 310 



239. Seventh piece of lateral ethmoid, 



outer surface 310 



240. Seventh piece of lateral ethmoid, 



inner surface 310 



FIGURE PAGE 



241. The skull, side view of cranial and 



nasal cavities . 311 



242. The ethmoid bone, anterior aspect . 312 



243. The ethmoid bone, cranial aspect . 313 



244. Human ethmoid bone, left side. 



(Leidy) 316 



245. Human ethmoid bone, inner aspect. 



(Leidy) 316 



246. Human ethmoid bone, upper aspect. 



(Leidy) 317 



247. The face : A, side view ; B, trans- 



verse section 319 



248. Bones of the face, viewed from be- 



hind, above, and the right side, 



natural size 320 



249. Position of left palatine bone . . . 321 



250. Left palatine bone, lower aspect . . 322 



251. The skull, lower aspect 323 



252. Left palatine bone, upper aspect . . 324 



253. Left palatine bone, orbital aspect . 325 



254. Outer wall of left nasal cavity from 



within, ethmoid removed .... 326 



255. Nasal fossae from below 327 



256. Right nasal chamber, side view from 



within 328 



257. Transverse vertical section of skull 



through orbits, seen from behind 329 



258. Human skull, external view of base, 



right side. (Leidy) 332 



259. Relations of human sphenoid and 



palatine bones. (Testut) .... 333 



260. Human face, left side, outer walls of 



the orbit and antrum removed. 

 (Leidy) 333 



261. Human right palatine bone, pos- 



terior view. (Leidy) 334 



262. Human right palatine bone, exterior 



view. (Leidy) 



263. Position of the maxillary bone . . 



264. The skull, front view 



265. Left maxillary bone, outer surface, 



side view 



266. Left maxillary bone, superior and 



outer aspects 339 



267. The skull, lower aspect 340 



268. Left maxillary bone, superior sur- 



faces 343 



269. Floor of nasal fossae, ethmoid and 



maxillo-turbinals removed . . . 344 



270. Left maxillary bone, inner aspect, 



side view 346 



271. The skull, left side 347 



272. Transverse vertical section of skull 



through orbits, seen .from behind 348 



273. Position of left premaxillary bone . 354 



274. The skull, front view 355 



275. Left premaxillary bone, outer sur- 



face, side view 355 



276. Left premaxillary bone, lower view 356 



334 

 336 

 337 



338 



