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Excerpt from Remarks on the Improvement of Tidal Rivers
The in¿ux of the tidal wave through Firths or Bays, and the modification it receives in its passage up the inclined beds of rivers, produce two physical boundaries, which are found to exist in all rivers, when viewed in connection with the sea. These boundaries, again, produce three sec tions or compartments, to the improvement of only one of which the practical remarks I have now to offer refer, but it is necessary that they should be clearly defined, before proceeding to what has been sketched out as the special subject of observation. The seaward, or lowest of these sections, I have elsewhere termed the sea proper the next, or intermediate one, into which the sea ascends, and from which it again withdraws itself, I termed the tidal compartment of the river and the highest, or that which is above the in¿uence of the sea, the river proper. Their relative extent, in different situations, is in¿uenced, not only by the circumstances under which the great tidal wave of the ocean enters the river, but by the size of its stream, the configuration and the slope of its bed, and.
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