Establishment of a port
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Establishment of a Port, the technical expression for the time that elapses between the moon's transit across the meridian at new or full moon at a given place and the time of high water at that place. The interval (constant at anyone place) may vary from 6 mins. (Harwich) to II hrs. ~5 mins. (North Foreland). At London Bridge it is Ihr. 58 mins.
This article incorporates text from the Encyclopædia Britannica Eleventh Edition, a publication now in the public domain.