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



TAB. IV. Fig. I. Shews the Brain in fttu^ when the 

 upp^r Part of the Skull is taken off, 



A. The Subjlance of the 'Brain covered with the PiaMaterj 

 only the Dura Mater being removed. 



BB. The Cerebellum, or After-brain, 

 GC. The Procellus Vermiformes, or Worm -like Proceffes, 

 "D. A Portion of the Medulla Oblongata. 

 E. The Dura Mater, fo far as it contains the Medulla Ob* 

 longata, cut a/under^ and turned back. 



Fig. 2, E.eprefents the Under- fide of the Brain and Spinal 

 Marrow, with the Origin of the Nerves. 



A A. The Eyes, ; 



BB. The Optick Nerves, 



CC. The fnoving Nerves of the Eyes, 



DD. The Pathetick Nerves. 



EEEE. &c. The other Nerves arifing ixithin the Skull 

 from the Spinal Marrow . 



FFF. TIj€ Bottom of the Brain, 



GG. 27v Medulla Oblongata, or Beginning of the Spinal 

 Marrow. 



H. The Spinal Marfoiv cut off, 

 ,1111. The Bars of the Palate of the Mouth. 



QQ^ The Cavity that goes from the Palate to the Nofe^ 



RRRR. The Teeth. 



SS. The Dara Mater turn'd back, 

 ' T. 2"he Glandula Pituitaria, 



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' which the Auditory Nerve doespafs. 



D. The greater Winding of the Cochlea. 



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

 ' F. The Malleus, or Plammer. 

 G. The Incus, or Anvil. 

 H. The Stapes, or Stirrop. 

 I. The external Mufcle of the Eaj\ 

 K. The Internal Mujcle, 



E 2 Fig. 4. 



