The Nature and use of Hadley's Quadrant, With a Preface Containing the Theory, on Which That Noble and Useful Instrument, (Hardcover)

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Harvard University Houghton Library

N011698

Frontispiece signed: John Gilbert. Mathematical Instrument-Maker, on Tower-Hill, London. John Gilbert active between 1767 and 1794; another, dated, edition, apparently from the same press, was published in 1790. In this undated edition, there is no comma after preface and the word 'theory' is set in large capital letters.

[London, 1790?]. viii,24p., plate; 8°