Description, use, and Method of Adjusting Hadley's Quadrant and Sextant. By George Adams,/fr-ca/description-use-and-method-of-adjusting-hadleys-quadrant-and-sextant.-by-george-adams/2D9738FB-BBF2-4DCF-97DF-77E2956B5183.html2D9738FB-BBF2-4DCF-97DF-77E2956B5183
Description, use, and Method of Adjusting Hadley's Quadrant and Sextant. By George Adams,