NERVES AND THEIR CONTROL 315 



4. Determine the farthest distance you can identify any 

 certain letter in a book. Also nearest distance. 



Conclusions. 1. Write a paragraph telling all you can con- 

 cerning your lead pencil. Just how have you obtained your 

 information ? 



2. Are you able to rely on your impressions; that is, do they 

 vary from day to day? Note. "The work of science is to 

 find out in some degree the real nature of the universe." 

 Your knowledge of science must come through your own 

 senses. The ultimate end of science is the regulating of 

 human conduct. " Seeing true means thinking right. Right 

 thinking means right action." Wrong thinking brings wrong 

 action, which causes misery, which is nature's protest against 

 this wrong action. 



3. Touch your finger to a hot stove. Show just how the 

 result explains the above note. 



4. Explain the statement, " There is no alleviation for the 

 woes of life except absolute veracity of action, the resolute 

 facing of the world as it is." 



5. Explain the statement, "As food must be formed into 

 tissue, so must perception pass over into action " ; that is, are 

 sensations for any other purpose than proper action? 



e. Habits 

 1. BENEFICIAL 



Observations. 1. Recall your experience in learning to write. 

 Compare with your ability to do so at present. What has 

 happened ? 



2. Try doing a difficult gymnastic feat. As nerve cell after 

 nerve cell (neuron after neuron, see Figure 79) sends out orders 

 to the muscles, do they seem to be able to handle the situa- 

 tion in improved ways ? Explain. 



3. Do you suppose the neurons of a child just learning to 

 walk find it easy to send out just the right orders to the 

 muscles? Explain your answer. 



