VENTILATING THE HOME 31 



HOME PROJECT 3 



Purpose. To make a ventilating screen. 



Directions. Make a ventilating screen to fit your bedroom 

 windows for use in cold weather. Follow the directions given 

 on page 29. Try it and see if it proves satisfactory. 



The sleeping porch is the best means for procuring perfect 

 ventilation while asleep. Even after the house has been 

 built, a sleeping porch can be easily added to it. In most 

 sections of our country this can be used all the year round. 

 And even in the northern portions it can be used three 

 fourths of the year. From the standpoint of health, a sleep- 

 ing porch is one of the most profitable investments that can 

 be made. 



HOME PROJECT 4 



Purpose. To make a sleeping porch. 



Directions. Talk the matter over with your parents and 

 see if it is possible to arrange some place where you can sleep 

 out at least during the warmer months of the year. There may 

 be some porch that can be screened and fixed without much 

 trouble. A small sleeping porch can often be added to the house 

 at slight expense. 



SUPPLEMENTARY QUESTIONS FOR CLASS DISCUSSION 



1. How does the air we breathe out differ from the air we 

 breathe in? 



2. What theories have been advanced to explain the reason 

 for the ill effects due to poor ventilation ? Which is the correct 

 one? 



3. How does the body control its temperature? 



4. Are the essentials of ventilation provided in your home? 

 In the schoolroom ? 



5. What is the principle involved in the thermometer? 



6. What is the relation of humidity to ventilation ? 



