The description and use of a new much-improved sinical quadrant, whereby, a person ... may learn, in six hours, to allow for variation and lee-way, &c. Also, determine the longitude at sea, ... Invented by John Adams, ... and made by Richard Rust, ...
Publisher: Skirven, printer, Ratcliff-Highway
Published: 1781
Place of publication: [London]
Language: eng
Format: Microform
Number of pages: 38
Notes: Includes: 'A journal of a voyage, from the Lizard, towards Madeira, in the Swift, A.B. commander. ..'.

Microfilm. Woodbridge, CT Research Publications, Inc., 1985. 1 reel ; 35mm. (The Eighteenth Century ; reel 1396, no. 05).