A new method for discovering the longitude both at sea and land, humbly proposed to the consideration of the publick. By William Whiston, ... and Humphry Ditton, ...
Whiston, William,1667-1752.
Ditton, Humphry,1675-1715.
London : printed for Mr. Whiston and Mrs. Ditton; and sold by J. Roberts,
1715.
ESTC