Ramsden's circle, an astronomical instrument

Ramsden's circle, an astronomical instrument.. Ramsden's circle, a five-foot high vertical circle finished in 1789 by the English scientific instrument maker Jesse Ramsden. Copperplate engraving by Wilson Lowry after a drawing by J. Farey from Abraham Rees Cyclopedia or Universal Dictionary of Arts, Sciences and Literature, Longman, Hurst, Rees, Orme and Brown, London, 1820

1789 Astronomical Cyclopedia Dictionary Farey Finished Hurst Longman Lowry Orme Ramsden Rees

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