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PLATE III. 



In Plate 3, I have given a sketch of a 

 Species of floating, commonly called catch- 

 work, a species very different from that 

 which I have described and recommended 

 above, and which ought never to be 

 adopted when the other plan is practi- 

 cable. In some situations, however, the 

 declivity of the land is too great to admit 

 of its being thrown into ridges, with their 

 respective floating-gutters pointing down 

 the descent; and therefore it becomes 

 necessary to make the distributing ditches 

 at a certain distance below each other, 

 across the declivity, to catch the water, 

 again and again, from the top to the bot- 

 tom of the meadow. It is evident that 

 the contents of the water, tlius repeatedly 

 used, are not equitably disposed of, for the 

 upper beds must receive more than their 



share 



