RESULTS OF A SUDDEN FLOOD 

 Soil and even buildings have been swept away. 



A CYPRESS SWAMP IN LOUISIANA BEFORE DRAINAGE 



A floating dredge is used to cut a canal around the area to be reclaimed. 

 The earth excavated from the canal is piled into an embankment inclos- 

 ing the tract. In this tract a network of drainage canals and ditches is 

 dredged from which the surface water is pumped out. 



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