190 ELEMENTS OF PHYSIOLOGY 



2. How far is it in one's power to determine the shape and appear- 

 ance of his own body ? 



3. Which is most disagreeable, a smoky fireplace, a smoky stove, 

 or a smoky man ? 



4. Give reasons why the weight of our clothing should hang from 

 the shoulders and not from the waist. 



5. Should a hat be well ventilated ? (A punch for making the 

 holes costs a dime.) 



6. Name habits that impair the power of the lungs. 



7. Which part of ordinary breathing uses no will power, although 

 none of the respiratory muscles are involuntary ? 



8. How could you convince a person that a bedroom should be open 

 while and after it is swept ? That it should be ventilated at night ? 



"9. Why do some persons " get out of breath " readily after a meal ? 



10. Can a person become so used to bad air that he will not notice 

 it ? That it will not injure him ? 



EXERCISE II 



11. Which is the more offensive, the tobacco chewer, who chiefly 

 pollutes the ground, or the smoker, who pollutes the air ? 



1 2. Why are those who have pimples on the face likely to multiply 

 their number by picking and squeezing them with the fingers ? 



13. Give the advantages of slow, deep breathing as compared with 

 quick, shallow breathing. 



14. Why do those who stand up to hoe not get tired half so quickly 

 as those who bend or " hump " over ? 



15. Why do students who sit in rocking-chairs, or from other causes, 

 lean the head forward when they study, often find that they recover 

 from drowsiness if they sit erect ? 



1 6. How are high collars a fruitful source of bad colds ? 



17. Is ventilation easier in winter or in summer ? 



1 8. How do you account for the fact that people of general intelli- 

 gence on most subjects sometimes use oil stoves, which are stoves 

 without stovepipes ? 



19. If the draught up the chimney of the fireplace, when the fire is 

 burning, takes up a volume of air sufficient for many people, why is it 

 unwise to open a window ? 



NOTES 



i. Respiration in Consumption. Doctors Robin and Binet studied 

 the respiration of nearly 400 cases of consumption, and reported their 



