CHAPTER VII 



EARLY FLY-REDUCTION 



As soon as the nature of the campaign has been adver- 

 tised, operations can be begun. The start can be made 

 in the summer or during the winter as convenient. 

 The chief fly-breeding places are known, and it remains 

 to deal with them. Every fly-lair should be cleansed 

 regularly once every week, and it is important to make 

 this a routine ; to this end each fly-lair must be in- 

 spected by an official of the authority conducting the 

 fly-campaign once every week. The methods employed 

 at Port Said, Ismailia, Panama, Port Swettenham, 

 Havana, and many other places for the reduction of 

 mosquitos should be copied exactly for the reduction 

 of flies. The town or district should be mapped out 

 into equal areas one for each day of the week, exclud- 

 ing Sundays. Beginning on the Monday morning, the 

 inspector should traverse the area allotted for that day, 

 street by street, and he must examine every fly-lair 

 for fly-maggots. He should arrange to visit each fly- 

 lair at a certain definite hour on the day allotted to 

 that area ; then the owners and their servants will 

 know when to expect him and will have the premises 

 clean for his coming. In this way the fly-larvae will 

 be destroyed at a certain hour of a certain day every 

 week throughout the year. The owners of the fly- 

 lairs will learn to expect the fly-inspector, and this 



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