AN ELABORATE TELEPHONE SYSTEM. 



287 



The inner part of the brain is whitish-cream in colour, and is a 

 vast mass of nerve fibres for the transmission of the commands of 

 the grey cells to the various parts of the body. 



According to phrenology, there is a special centre in the brain 

 for the manifestation of each of the great variety of thoughts, 

 desires, and emotions, in addition to the nerve centres which 



Fig. 118. — Brain cells which are paralysed and destroyed by poisons such as snake venom, narcotic 

 drugs and alcohol. The one to the left is a healthy normal cell, showing the nucleus clear 

 and distinct. The next one is swollen and sickly. The third is dead, the nucleus having been 

 entirely destroyed by alcohol. Free indulgence in alcohol damages and kills these brain cells. 

 Those which are destroyed are never replaced. 



control all movements, etc., of the body, and which carry out 

 the commands of the brain centres. 



An Elaborate Telephone System. 



The grey matter of the brain is a great collection of groups of 

 nerve cells, each group having a special function to perform in 

 controlling and directing the vital functions, and the generation 

 of thoughts, emotions and desires. From each group of grey 

 cells, nerve fibres run out and are connected up with other 

 brain groups and nerves running to the various parts of the 

 body. 



The marrow or spinal cord enclosed in the backbone is the 

 main cable from the brain. From this great cord, which can be 

 compared to a telephone cable composed of great numbers of 

 wires, nerves — just like telephone wires running out at intervals 



