Considerations and enquiries concerning tides, by Sir Robert Moray; likewise for a further search into Dr. Wallis's newly publish't hypothesis

In regard that the high and low waters are observed to increase, and decrease regularly at several seasons, according to the moons age, so as, about the new and full moon, or within two or three daies after, in the Western parts of Europe, the tides are at the highest, and about the quarter-moons, at the lowest, (the former call'd spring-tides, the other neap-tides;) and that according to the height and excesses of the tides, the ebbes in opposition are answerable to them, the heighest hide having the lowest ebbe, and the lowest ebbe, the highest tide;