Sailing directions for the rivers Elbe and Weser, the island of Helegoland, &c : Intended to be used with two charts, drawn from the actual survey of J. T. Reinke & J. A. Lang, by order of the Board of Trade at Hamburgh; describing the rocks, sands, soundings, currents, anchorages, buoys, beacons, light-houses, &c. (printed for William Heather, and sold at every sea-port in Great-Britain and Ireland,, 1796)