VENTILATION 129 



until health was fully restored, have returned to their 

 homes and got completely well there. The enforced 

 stay in the mountains taught them the great value of 

 pure out-of-door air, and they made practical use of this 

 knowledge after coming back to the duties of home 

 and business life. 



If such persons had learned fully to appreciate the 

 great value of pure, cold air, years before, the unhappy 

 experience of leaving business and friends for such a 

 long period might have been easily avoided. While 

 we hear more about out-of-door treatment in con- 

 nection with consumption than with other diseases, 

 there is no doubt about pure air being most helpful 

 in aiding the body to get rid of any illness. The prac- 

 tice of having every door and window shut so as to 

 keep air from patients ill with colds or other diseases, 

 is most unwise. Through such precautions, the very 

 best curative which an all-wise Creator has furnished 

 is kept from doing its benign work. 



It is needless to say that if out-of-door air works 

 such wonders for sick people, all should have it abun- 

 dantly from babyhood to old age. That neglecting to 

 make free use of this " life-giving air from on high" 

 until failing health or dread disease compels it, is 

 most unwise, also goes without saying. The oxygen 

 that helps to give the merry skater rosy cheeks, spar- 

 kling eyes, and active grace is just outside our windows 

 on frosty nights. Why do we let it in so sparingly? 

 Often because a warm room is wanted to dress in next 



