River and Canal Engineering, the characteristics of open flowing streams, and the principles and methods to be followed in dealing with them. — 1. Tides.—The tides or “tidal waves” are caused by the attraction of the moon and the sun. The phenomena are complex, an

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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. Tides.—The tides or “tidal waves” are caused by the attraction of the moon and the sun. The phenomena are complex, an · ch 68/78

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