. Dr. Evans' How to keep well; . I § «j § 5 § $ 929. 930 FLIES 931 the number of chances for flies to pick up infection increases as the seasongoes on. A typhoid laden fly does no harm so long as he stays out in the grass,but when the cold night season arrives the house fly fits his name. Forthese reasons there should be no let up on the fly campaign. Another reasonfor continuing the effort is to lessen the number to be carried over into eachsucceeding year. There should be fewer flies hatched each year. Every onekilled, therefore, represents a decrease in the supply. PREVENTING FLY BREEDING T


. Dr. Evans' How to keep well; . I § «j § 5 § $ 929. 930 FLIES 931 the number of chances for flies to pick up infection increases as the seasongoes on. A typhoid laden fly does no harm so long as he stays out in the grass,but when the cold night season arrives the house fly fits his name. Forthese reasons there should be no let up on the fly campaign. Another reasonfor continuing the effort is to lessen the number to be carried over into eachsucceeding year. There should be fewer flies hatched each year. Every onekilled, therefore, represents a decrease in the supply. PREVENTING FLY BREEDING The fight against flies began with the slogan Swat the fly. Fly swat-ters, fly paper, fly poison, and fly screens are in general use. It was soon seenthat something else was needed. The next step was the general use offly traps in places not well adapted toscreens, fly paper, and fly swatting. As I go around the country I findthat the use of fly traps in the vi-cinity of fruit and vegetable stands,around milkhouses and some otherplaces widespread. A


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Keywords: ., bookcentury1900, bookdecade1910, booksubjecthygiene, booksubjectm