THE WINDOWS. 



147 



sides and back part of it } as you see in the en- 

 graving. 



If the eye of a dead person say a criminal 

 was to be cut in two in the middle from top 

 to bottom, with the handle of the knife held 

 forward, and the point towards the back side of 

 the head, a side view of one of these halves 

 might be supposed to look like the engraving. 

 A large whitish cord, which you see running 

 from b to the back side of the eye, comes from 

 the brain, and is called the optic nerve. The 

 rest of the cords between d and e are muscles, 

 or little bundles of flesh ; and they become ten- 

 dons, or white, hard cords, at the smaller part, 

 where they are fastened to the eye. The up- 

 per one goes round a little piece of bone like a 



