. . "1700 - 1799" . . "Great Britain England London." . . "Great Britain" . . "An account of the proceedings of Henry De saumarez, of the island of Guernesy, gent. Concerning his discovery of an invention, by which the course of a ship at sea may be better ascertained than by the logg-line, viz. By a dial placed in some convenient place of the ship, with a little bell striking from time to time, the geometrical peaces, miles, and leagues, which the shiphath run"@en . . . . . "History" . "History"@en . . . . "An account of the proceedings of Henry De saumarez, of the island of Guernesy, gent Concerning his discovery of an invention, by which the course of a ship at sea may be better ascertained than by the logg-line, viz. By a dial placed in some convenient place of the ship, with a little bell striking from time to time, the geometrical peaces, miles, and leagues, which the shiphath run" . . . .