The description and use of a new much-improved sinical quadrant, whereby, A Person knowing Addition and Subtraction only, may learn, in Six Hours, to allow for Variation and Lee-Way, &c. Also, determine the Longitude at Sea, and keep a regular Journal of a Voyage to any Part of the World. This Instrument is equally useful in Altimetry, Surveying, &c. for taking Altitudes, and determining right angled Triangles. Invented by John Adams, at the Academy, In Brook-Street, Ratcliff; And Made by Richard Rust, Mathematical-Instrument-Maker, St. Catherine's, London.
- Adams, John, approximately 1730-approximately 1800.
- Date:
- MDCCLXXXI. [1781]
- Books
- Online
Online resources
About this work
Publication/Creation
[London] : Skirven, printer, Ratcliff-Highway, MDCCLXXXI. [1781]
Physical description
38,[2]p.,plate ; 80.
References note
ESTC T13195
Reproduction note
Electronic reproduction. Farmington Hills, Mich. : Thomson Gale, 2003. (Eighteenth century collections online). Available via the World Wide Web. Access limited by licensing agreements.