. Elementary biology; an introduction to the science of life . Fig. 206. A breeding place for house flies The community that saves itself money or trouble by permitting back ^-ards of this kind usually pays for its economy and indifference with disease and death. With the econo- mies of motor cars and traction engines must be reckoned the reduction in typhoid fever and other fly-borne diseases From a report made by an army commission as to the causes of epidemic fevers in the army camps during the Spanish-American War, we learn that " flies swarmed over infected fecal matter in the pits a


. Elementary biology; an introduction to the science of life . Fig. 206. A breeding place for house flies The community that saves itself money or trouble by permitting back ^-ards of this kind usually pays for its economy and indifference with disease and death. With the econo- mies of motor cars and traction engines must be reckoned the reduction in typhoid fever and other fly-borne diseases From a report made by an army commission as to the causes of epidemic fevers in the army camps during the Spanish-American War, we learn that " flies swarmed over infected fecal matter in the pits and fed upon the food prepared for the soldiers in the mess tents. In some instances where lime had recently been sprinkled over the contents of the pits, flies with their feet whitened with lime were seen walking over the ; We can readily understand why it was that more soldiers were killed by intestinal diseases than by Spanish bullets.


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Keywords: ., bookcentury1900, bookdecade1920, bookpublishe, booksubjectbiology