Instructions for the use of Hadley's quadrant, containing, the principles on which that admirable instrument is constructed, with a description and use of the Nonius divisions. As made and sold by George Adams, Mathematical Instrument-Maker to his Royal Highness George Prince of Wales. At Tycho Brahe's head in Fleet-Street, between Serjeant's-Inn and Water-Lane. Where Gentlemen may be supplied with all Sorts of Mathematical Instruments for Land or Sea; Tellescopes of all Sizes for Day or Night; together with all other Optical and Philosophical Instruments of the newest Invention.

Date:

1789?]