436 . GENERAL SCIENCE 



In order that the gases may have time to complete their 

 work and be most effective, rooms and houses which are 

 being disinfected by fumigation should always be tightly 

 closed during the process of fumigation and allowed to 

 remain closed for several hours. 



QUESTIONS 



1. How does the body resist disease? 



2. What are the incubation periods for scarlet fever, measles, 

 diphtheria, hydrophobia? 



3. Has your town a food inspector? Are tests of milk and ice 

 cream made frequently? 



4. Does pasteurizing milk affect its digestibility? 



5. What is meant by Federal meat inspection? 



6. What is the death rate for your town? How does it compare 

 with other cities of the country? 



7. How does your community obtain its water? How does it 

 dispose of sewage ? Garbage ? 



8. How do the city and country compare in healthf ulness ? 



9. Can you name a disease which at the present time is con- 

 sidered incurable? 



10. How are you fighting flies? 



11. Why should we all be interested in community sanitation? 



