THE NERVOUS SYSTEM 213 



of being educated which have the best development of the 

 cerebrum. (Head Note 1.) 



10. The Cerebellum. The " little brain " is placed beneath 

 the posterior part of the cerebrum, and, like the latter, is 



FIG. 51. LOWER SURFACE OF THE BRAIN 

 The numbers refer to the pairs of nerves 



divided into hemispheres. Like it, also, the surface of the 

 cerebellum is composed of gray matter, and its interior is 



1. The Brain. Ci Our brains are seventy-year clocks. The Angel of 

 Life winds them up once for all, then closes the case, and gives the key 

 to the Angel of the Resurrection. Tic-tac ! tic-tac ! go the wheels of 

 thought ; our will cannot stop them ; they cannot stop themselves ; sleep 

 cannot stop them ; madness only makes them go faster ; death alone can 

 break into the case, and, seizing the ever-swinging pendulum, which we 

 call the heart, silence at last the clicking of the terrible escapement we 

 have carried so long beneath our wrinkled foreheads. . . . Now, when 

 a gentleman's brain is ill-regulated or empty, it is, to a great extent, his 

 own fault, and so it is simple retribution that, while he lies slothfully or 

 aimlessly dreaming, the fatal habit settles on him like a vampire and 

 sucks his blood, fanning him all the while with its hot wings into deeper 

 slumber or idler dreams." Holmes' 1 The Autocrat of the Breakfast- Table. 



10. Location of the "little brain?" How divided ? Its surface and interior ? Its sub- 

 divisions ? Its size ? 



