PREVENTIVE MEASURES 183 



cessful fly trap which cost for material about fifteen 

 cents, and writes that any bright boy can make one of 

 them in an hour or two. He took two pieces of board 

 one inch thick and about a foot square; tacked them 

 together, sawed them round, and in the center sawed 

 a hole eight inches in diameter. He then separated 

 the boards, and into one he fitted a funnel-shaped piece 

 of wire screen about ten inches high, which was fas- 

 tened to the board with tacks driven on the inside of 

 the round hole and fastened together funnel-shaped 

 with a strand of the wire selvage. A small hole, large 

 enough to admit a lead pencil, was left at the apex of 

 the funnel for the flies to creep through. He then 

 tacked a piece of wire netting, eighteen inches wide, to 

 the outside circumference of each of the round boards, 

 with the funnel-shaped wire on the inside. The out- 

 side of the wire was again fastened with the selvage 

 of the wire. On the top he tacked a piece of wire 

 screen in such a way that he could readily remove it to 

 empty out the flies. He then nailed lengthwise on the 

 outside of the trap a few laths to make it more firm. 

 He then made feet by screwing into the bottom piece 

 containing the funnel four wire coat-hangers about five 

 inches high. 



He placed these traps (he made two at the same 

 time) one on each side of the front porch, and under 

 each he placed a plate with some sugar on it and a cup 

 of sweetened water in the plate. Flies were attracted 

 by the sugar and sweetened water, and as they flew 

 over the bait they crawled through the hole in the fun- 



