96 HOUSEHOLD INSECTS 



to leave three legs. A series of six holes, near the top, 

 provides for a draft, and a tin pan or dish is set on top 

 of the pipe and holds the Culicide, which is heated by 

 the flame of an alcohol lamp placed at the bottom of the 

 pipe. It will require an ounce of alcohol to completely 

 evaporate three ounces of Culicide in twenty minutes. 

 The Culicide is inflammable, but not explosive. As a 

 matter of safety it will be better to place the apparatus 

 in a tub of water on two or three bricks, so that in case 

 of carelessness there will be no danger of fire. The room 

 to be fumigated should be closed tightly, as recommended 

 above, and should be kept closed for two hours at least. 

 This material will not affect fabrics nor metals, nor are 

 the fumes dangerous to human life. It is not recom- 

 mended that anybody remain within the room while 

 fumigation is going on, but the room can be safely en- 

 tered immediately after opening, and it is quite possible 

 to remain in the room with comfort until the evaporation 

 or fumigation is thoroughly under way. It will be well 

 to use only enough alcohol in the lamp to evaporate the 

 material, so that it will go out when its work is done. The 

 flame should be sufficiently high to reach well up toward 

 the tin dish used, so that evaporation may be rapid. It 

 should not be used so high as to come out through the 

 holes and so run the risk of setting fire to the material. 



THE USE OF BED NETS 



In spite of our best efforts there are always a few mosqui- 

 toes in certain regions, but there is one good method of 

 escape from them, and that is by the careful use of a good 

 bed net. If a net is arranged so that it does not hang 



