THE FLOW OF WATER IN" lEKIGATIOlSr CHANNELS. 



55 





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Yvi. »', ' h:irt for ii;.«) In (Jwltjnlnn ordinary coiicndi!, wood, or sUxjI cIjiiiiik!!:) on iiiodorute slopos. 

 1- rom Iho liUorniCllon of U and n follow (juldo lim-s to InUsrsccllon of H mid V. 



