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U (Stack -oversize)Roy, William
"An Account of the Trigonometrical Operation, whereby the Distance between the Meridians of the Royal Observatories of Greenwich and Paris has been determined"
By Major-general William Roy, F.R.S. and A.S.; offprint from Philosophical Transactions of the Royal Society, vol. LXXX, {...}, pp. 111-270 & Tabs. V-XV. Read February 25, 1790.
[1933- ]
1790