Extension of the triangulation of the ordnance survey into France and Belgium with the measurement of an arc of parallel in latitude 52° N. from Valentia in Ireland to Mount Kemmel In Belgium

Descripción

32 cm x 25.5 cm, vi, 62 p., 7 plates. The contents clean and tight with no inscriptions. Publishers blind stamped red cloth 4 cm loss to head of the spine some rubbing to lower outer corners, and some light dust soiling. The binding tight with no splits, overall a vg copy of a scarce work. The plates are line drawings of plans of the observatory's scaffolds etc + a diagram of the triangulation. N° de ref. del artículo 03596

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