Philosophical Transactions Giving Some Account Of The Present Undertakings Studies And Labours

by Charles Mason Jeremiah Dixon

$1,250 · Offered by Back Creek Books

London: Printed for L. Davis and C. Reymers, Printers for the Royal Society, 1769. Folding plates. Paper over boards with leather spine. Octavo. xii, 382, 2 pages. First publication of Mason and Dixon’s landmark geodetic paper: “Observations for Determining the Length of a Degree of Latitude, in the Provinces of Maryland and Pennsylvania, in North America” pp.

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