5 How does travel to new regions bring dangers to health? 



6 What is there to show that flies are dangerous neighbors? 



7 What can the individual do for his protection if the community continues 

 to tolerate flies? 



8 What is the evidence that mosquitoes endanger health? 



9 At what point in the life history of the mosquito is it most easily extermi- 

 nated? 



10 How can mankind use knowledge of the life histories and habits of other 

 species? 



11 What is the connection between a people's habits and customs and its like- 

 lihood of becoming infested with hookworm? with trichina? 



12 How can the home water supply be protected in the country? 



13 How can house waste, garbage, and other refuse be kept from injuring 

 health? 



14 What methods of milk inspection are used in your community? of dairy in- 

 spection? of testing milk as to quality? of testing milk as to bacteria? 



15 In what ways do the newspapers in your community promote better health? 

 obstruct improvement in health? 



16 What changes in your conduct or habits have resulted from anything you 

 have learned about health? from the services of school-health inspection? from 

 anything done by your physician? 



17 Why is it necessary to have Federal health service in addition to what the 

 different states and cities are doing? 



18 What diseases have been of diminishing importance in your community 

 during the past ten years? What brought about the change? 



19 What diseases have been causing more injury in your community during the 

 past ten years? What brought about the change? 



640 



