The theory of Hadley's quadrant demonstrated; and from thence its nature, construction, and uses are fully shewn. With a table of the sun's declination for finding the latitude of the place. To which is added, a new construction of the quadrant, ... By Benj. Martin.
Martin, Benjamin,1705-1782.
London : printed for the author at Hadley's Quadrant and Visual Glasses,
[1760?]
ESTC