and Calais, if the Tide coming about the Island from the North did not check it. And this force being once impress'd upon the Water, continues to carry it above the level of the ordinary height in the Ocean, particularly where the Water meets a direct Obstacle, as it is at St. Malo's; and where it enters into a long Channel, which running far into the Land, grows very streight at its Extremity; as it is in the Severn-Sea at Chepstow and Bristol.
This shoalness of the Sea, and the intercurrent Continents are the reason, that in the open Ocean the time of High water is not at the Moons appulse to the Meridian, but always some Hours after it; as it is observ'd upon all the West Coast of Europe and Africa, from Ireland to the Cape of Good Hope: In all which a S. W. Moon makes High-water, and the same is reported to be on the West side of America. But it would be endless to account all the particular Solutions, which are easie Corollaries of this Hypothesis; as why the Lakes, such as the Caspian Sea, and Mediterranean Seas, such as the Black Sea, the Streights and Baltick, have no sensible Tides: For Lakes having no Communication with the Ocean, can neither increase nor diminish their Water, whereby to rise and fall; and Seas that communicate by such narrow Inlets, and are of so immense an Extent, cannot in a few Hours time receive or empty Water enough to raise or sink their Surface any thing sensibly.
Lastly, to demonstrate the Excellency of this Doctrine, the Example of the Tides in the Port of Tunking in China, which are so extraordinary, and differing from all others we have yet heard of, may suffice. In this Port there is but one Flood and Ebb in 24 Hours; and twice in each Month, viz. when the Moon is near the Æquinoctial there is no