A new method for discovering the longitude both at sea and land [electronic resource] : humbly proposed to the consideration of the publick. By William Whiston, ... and Humphry Ditton, ...
With an appendix. Reproduction of original from the British Library. Available online to authorized PSU users as part of the Medicine, science, and technology series of Eighteenth century collections online.
Reproduction Note:
Electronic reproduction. Farmington Hills, Mich. : Thomson Gale, 2003. Available via the World Wide Web. Access limited by licensing agreements