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TROPICAL HYGIENE, SANITATION, ETC. 



A large proportion of typhoid epidemics is due to the use of 

 shallow wells. 



Any well should have the brick'-work run up to a height of several 



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feet above the surface of the ground, with a dome-shaped cover over 

 ;!:he top, well cemented, and the sides cemented down to the impervious 

 layer or to below the water level. Around the well for a distance of 

 12 feet should be concreted, sloping ofT from the well so that drainage 

 away from the well will be facilitated. 



