CONTENTS. 



Page. 



Introduction 5 



City and country conditions compared 5 



Sources of typhoid fever 6 



Methods of protection from typhoid and malaria 6 



Malaria 7 



Malaria-bearing mosquitoes 7 



Breeding places of malaria-bearing mosquitoes 10 



Measures to be taken to prevent malaria 10 



Typhoid fever 13 



House flies and breeding places 13 



Measures to be taken to prevent typhoid fever 14 



Fruit flies 16 



Other diseases carried by insects 16 



Yellow fever 18 



155 



(3) 



