12mo (155 x 93 mm). With 5 engraved folding maps & plans and 11 engraved folding plates. Contemporary half calf. Provenance: Previous ownership stamp partiallly effaced on pastedown.First Octavo Edition. This Royal French Expedition was led by members of the French Academy of Sciences and was one of two to determine the dimensions and shape of the early by measuring one exact degree of meridian. Although the printed table lists 18 engravings, 2 were never printed. It was first published in Paris in quarto in 1744. Brunet IV, 262.