Bui. 1098, U. S. Dept. of Agriculture. 



Plate VII. 



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Fig. 1. — View across Bayou Walnut, after clearing, 200 yards above site of dam. Compare with 



Plate III, Figure 3. 



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Fig. 2.— View across Bayou Walnut, after clearing, 300 yards above site of dam. Compare with 



Plate IV, Figure 1. 



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Fig. 3. — View across Bayou Walnut, after clearing, SOO yards above site of dam. 

 IMPOUNDING WATER TO CONTROL MALARIA MOSQUITOES. 



