River and Canal Engineering, the characteristics of open flowing streams, and the principles and methods to be followed in dealing with them. — 1. Preliminary Remarks.—Every structure which interferes at all with a stream causes an abrupt change in the stream (Cha

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River and Canal Engineering, the characteristics of open flowing streams, and the principles and methods to be followed in dealing with them. 1. Preliminary Remarks.—Every structure which interferes at all with a stream causes an abrupt change in the stream (Cha · ch 46/78

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