The endemic diseases of the southern states . Fig. 53.—An ill-chosen town site along the bayou. should be drained into each other and an attempt made toreestablish a flow and to permit of scouring and the access offish from the larger pools. Where the pools are small muchwater can be gotten rid of by the use of brooms. In the case of large bodies of water subject to overflow theproblem is more difficult. The primary effect of the sub-merging of land, while the water is high, is to diminish secondary effect, after the waters have receded, is to causea marked increase. The effect upo
The endemic diseases of the southern states . Fig. 53.—An ill-chosen town site along the bayou. should be drained into each other and an attempt made toreestablish a flow and to permit of scouring and the access offish from the larger pools. Where the pools are small muchwater can be gotten rid of by the use of brooms. In the case of large bodies of water subject to overflow theproblem is more difficult. The primary effect of the sub-merging of land, while the water is high, is to diminish secondary effect, after the waters have receded, is to causea marked increase. The effect upon malaria of inundationsis almost yearly observed in the valleys of the Nile, of the l8o ENDEMIC DISEASES OF THE SOUTHERN STATES. Fig. 54.—Anopheles breed among the cypress knees.
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Keywords: ., boo, bookcentury1900, bookdecade1910, booksubjectdiseaseoutbreaks
