IV 



REMEDIES AND PREVENTIVE MEASURES 



TO avoid only the danger from flies, you must de- 

 stroy or protect from them all substances contain- 

 ing disease germs. This is done in large part, so far as 

 intestinal diseases are concerned, by the water-closet 

 system in cities, and it may be done by sanitary privies 

 in villages and country houses and in mining and con- 

 struction camps ; and also by properly cared-for trenches 

 or latrines at temporary army posts. To avoid danger 

 from flies in the case of lung troubles, the proper care 

 of the sputa is essential. 



To avoid the nuisance of flies it becomes necessary 

 practically to get rid of them, and in doing this of 

 course we get rid of the danger at the same time. It 

 has always seemed to the writer that the truest and 

 simplest way of attacking the fly problem is to prevent 

 them from breeding, by the treatment or abolition of all 

 places in which they can breed. To permit them to 

 breed undisturbed and in countless numbers, and to 

 devote all our energy to the problem of keeping them 

 out of our dwellings or to destroying them after they 

 have once entered in spite of all obstacles, seems the 

 wrong way to go about it. To the individual who has 

 control of the grounds for some distance about his 

 abiding place, the former method is undoubtedly the 



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