NERVES AND THEIR CONTROL 



317 



Conclusion. What is the result of tobacco poison on the 

 nervous system ? 



Observations. 1. Why do life insurance companies consider 

 even "moderate drinkers" as an "extra risk"? 



\ 



FIG. 80. Experiment to show how tobacco affects the nerves, m is a tube 

 through which the air is sucked from the bottle nearly full of water. This 

 draws smoke from the lighted cigarette through the tube down into the 

 water. The poison in the smoke from six cigarettes was thus drawn into the 

 water which was later poured into the jar with the fish, putting it to sleep 

 in one half hour, and finally killing it. 



2. What is the recognized effect of opium on the sense 

 organs ? 



Conclusions. 1. What do you think of the reliability of 

 impressions from the sense organs when they are affected by 

 alcohol, opium, or tobacco ? 



2. Explain the statement, "Every failure in the sense 

 organs, every form of deterioration of the nerves, shows itself 

 in reduction of power." 



Observations. 1. Study the following statement: "The 

 hell to be endured hereafter, of which theology tells, is no worse 

 than the hell we make for ourselves in this world by habitually 

 fashioning our characters in the wrong way. Could the young 



