284 Physiology. 



Perhaps Robinson Crusoe might have been excused for 

 using tobacco, having no one to save money for, no un- 

 fortunates to aid, no children to educate, no one to whom 

 he might set a bad example, no one whose breath of air he 

 could contaminate, no one to smell his breath, no one to 

 see the offensive results. But a man living in the society 

 of so many to whom this habit is so offensive, ought seri- 

 ously to ask himself whether he is doing right to continue 

 such a practice. 



Summary. i . Tobacco is an American product. 



2. The essential thing in tobacco is nicotine, a very violent poison. 



3. Nicotine acts powerfully on the nervous system. 



4. No antidote for this poison is known. 



5. Tobacco interferes with digestion. 



6. Tobacco causes palpitation and irregular action of the heart. 



7. Tobacco irritates the respiratory organs. 



8. Cigarette smoking is especially bad, most of all on the young. 



9. Tobacco interferes with brain work, especially in young students. 



10. Tobacco makes the nerves unsteady. 



1 1 . The use of tobacco dulls the senses, especially sight. 



12. The use of tobacco by the young is a frequent cause of stunted 

 growth . 



13. The use of tobacco is likely to lead to the use of alcoholic drinks. 



14. Tobacco-using is an extravagant habit. 



15. The use of tobacco is selfish, and disregards the rights of others. 



1 6. Tobacco-using is a filthy habit. 



