A shoal in the North Sea, off the Thames mouth, outside the Long Sand, fifteen miles N.N.E. of the North Foreland. It measures seven miles north-eastward, and about two miles in breadth. It is partly dry at low water. A revolving light was set up in 1840.
This text comes from a footnote on a diary entry in the 1893 edition edited by Henry B. Wheatley.