Chap. IV. The Anatomy <?/ ^ H O R S E. 51 



T A B. IV. Fig' I- Shews the Brain infitu^ when the 

 upper Part of the Skull is taken off. 



A. The Subjlance of the 'Brain coz'srei with the Pia Mat^r^ 

 only the Dura Mater being removed. 



BB. The Cerebellum, or After-brain. 



CC. The Procefl'us Vermiformes, or Worm -like Procejfes. 



D. J Portion of the Medulla Oblongata. 



E. The Dura Mater, fofar as it containi the Medulla Ob» 

 longata, cut afunder, and turned back* 



Fig. 2. Reprefents the Under-lide of the Brain and Spinal 

 Marrow, with the Origin of the Nerves. 



A A. The Eyes. 



BB. The Optick Nerves. 



CC. The moving Nerves of the Eyes, 



DD. The Pathetick Nerves. 



EEEE. he. The other Nerves arifmg "jcithin the SkuU 



from the Spinal Marrow. 

 FFF. The Bottom of the Brain. 

 GG. The Medulla Oblongata, or Beginning of the Spinal 



Marrow. 

 H. The Spinal Marrow cut off. 

 nil. The Bars of the Palate of the Mouth. 

 QC^ The Cavity that goes from the Palate tQ the Nofe* 

 RRRR. The Teeth. 

 SS. The Dura Mater turn'd back. 

 T. T^he Glandula Pituitaha. 



Fig. 3. Shews the Bones of the Ear, ^V. 



A A. The Infide of the Os Temporis, or Temple-bone. 



B. Th^ Os Spongiofum, or Spungy bone. 



C. The Hole thro' ivhich the Auditory Nerve does pafs. 



D. The greater Winding of the Cochlea. 



EEE. The three bony half Circles that form the Labyrinth, 



F. The Malleus, or Hammer. 



G. The Incus, or Anvil. 

 H. The Stapes, or Stirrop. 



I. The exter?ial Mufcle of the Ear. 

 K, The Internal Mujcle. 



E % Fig. 4J 



