The Description and Use of an Apparatus Added as an Improvement to Davis's Quadrant, Consisting of a Mercurial Level, for Taking the Co-Altitude of Sun or Star at Sea, without the Usual Assistance of the Sensible Horizon, Which Frequently is Obscured. By Charles Leigh, Gent

✍ Scribed by Charles Leigh

• Book ID: 123998020
• Publisher: The Royal Society
• Year: 1737-1738
• Weight: 838 KB
• Volume: 40
• Category: Article
• ISSN: 0261-0523
• DOI: 10.2307/103949