The nature and use of Hadley's quadrant, with a preface containing the theory, on which that noble and useful instrument is founded. And a description of the nonius.
[London,
1790?]
Frontispiece signed: John Gilbert. Mathematical Instrument-Maker, on Tower-Hill, London.
In this undated edition, there is no comma after preface and the word 'theory' is set in large capital letters.
John Gilbert active between 1767 and 1794; another, dated, edition, apparently from the same press, was published in 1790.
Reproduction of original from the Harvard University Houghton Library.
ESTC