Tables showing the approximate magnetic direction and ordinary rate (at spring & neaps) of the tidal streams in the Dover Straits, and from an offing of from 3℗ʹ to 20℗ʹ off 27 positions on the south coast of England, for every half-hour of the tide at Dover
Subtitle: also a table to be used for correction, to be applied to sounding
Publisher: J.D. Potter
Published: 1894
Place of publication: London
Subjects: Tides -- Dover, Strait o; Tides -- Table