. Engineering and Contracting. d not be under largetrees, but rather should be in a sunny should be no low lying ground nearby nor should there be swamps. Of coursethese points cannot always be guardedagainst, but they should be taken into consid-eration, and the best that can be done underthe circumstances in selecting the camp siteshould be done. When near streams it is anexcellent idea to camp above high water lineand away from mud flats. Plenty of air andsunshine are wanted. The presence of stag-nant water means that mosquitoes will breedand possibly some varieties will appear t
. Engineering and Contracting. d not be under largetrees, but rather should be in a sunny should be no low lying ground nearby nor should there be swamps. Of coursethese points cannot always be guardedagainst, but they should be taken into consid-eration, and the best that can be done underthe circumstances in selecting the camp siteshould be done. When near streams it is anexcellent idea to camp above high water lineand away from mud flats. Plenty of air andsunshine are wanted. The presence of stag-nant water means that mosquitoes will breedand possibly some varieties will appear thatrnay carry infection from man to man. Whenflies appear in great numbers it is a fore-gone conclusion that the sanitary conditionsare bad. Some men believe it is not a badidea to have plenty of flies around, as theyare scavengers. Flies are certainly scaven-gers, but they are really a warning sent outthat health conditions are bad and growingworse. Tents should not have earth floors, norshould shacks have earth floors. There. Fig. 7—Slope of Levees Built by the BottomSand Gates in Pipe Line. should be a space underneath for a free cir-culation of air. If it is not possible to havefloors in the tents or buildings, then by allmeans build cots for sleeping purposes, sothat no man will be obliged to sleep next theground. When temporary camps are used 154 ENGINEERING-CONTRACTING Vol. XXXIII. No. 7. every man should have under his blankets athick layer of straw or boughs of the daytime the walls of the tentsshould be raised to permit a free circulationof air and buildings should be provided withmeans to secure a free circulation of airclose to the floor. Catarrhal complaints arise when men arecompelled to sleep night after night in un-aired blankets. It has been found that mat-tresses make men more comfortable thanblankets only, and some sort of mattressshould be supplied every man. Blankets maybe piled on top of a man until his bones achewith the weight, but if ther
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