Note 12 — Chapter III
Reading edition
It is not intended here to deny what some writers state—that the friction caused by the Earth’s rotation does in some degree act upon the tidal wave. It is remarkable, so far as can be ascertained from observations taken at some small island at a distance from any continent, that the tidal wave of the Ocean only rises, even at the spring, about five or six feet. The enormous rise of water at some places arises from the tidal wave being driven into estuaries, mouths of rivers, and other narrow channels.