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Special inspector make a complete reinspection O'f the section the 

 mam ini question has juist finiished. Every man's work should be 

 reinspected regularly throughout the season. I believe that this 

 is as essential a factor in mosquito control as is finding the 

 breeding in the first place. 



The next step is to oil the breeding that cannot be destroyed 

 by the inspector. General experience has shown that the low 

 gravity gas oil commonly known as fuel oil is quite satisfactory. 

 I believe, however, that a series of thorough experiments both 

 in the laboratory and in the field will develop an oil of a greater 

 range and rapidity of spread and of longer life after exposure. 

 Although dippers, tin cans and sprinkling pots are still employed 

 to spread the oil, in many localities their use, except in very spe- 

 cial cases, is a false economy of time and oil, and seldom results 

 in complete destruction of the breeding. A pump sprayer is the 

 most efficient apparatus yet devised to cover a given area of 

 water with a film of oil under all conditions. The ''Universal 

 S'Uccess" sprayer, consisting of a galvanized three-gallon cylin- 

 drical can with a hand-pump and equipped with a ''Bordeaux*' 

 n'O'Zzle adjutable to three types of spray, manufactured by the 

 Deeming Pump Co., of Salem, Ohio, has been used for several 

 years: in Essex County with complete satisfaction. This outfit 

 costs approximiately $io. 



Sometimes oil can be brought to the breeding place in the 

 original container, more often it is better to use five-gallon cans 

 for convenience in handling. In either case the oil must be 

 drawn. The usual procedure is for two men to wrestle the barrel 

 upon a rack, tap the head, insert a spigot and draw off the oil. 

 A better way is to knock out the bung and use a tin liquor pump. 

 The barrel can be dropped anywhere, the oil flows faster, and 

 one man can handle the whole job. 



After a study of the problem of transportation of oil from 

 station to breeding place, I have reached the conclusion that the 

 use of horses and wagons is too inefficient and too expensive a 

 method. From the standpoint of convenience, flexibility, speed, 

 and range of operation, the advantages of motor transportation 

 are obvious. The question of cost, however, needs some dis- 



