Fig. 2From: Geodesy in Japan: legends and highlightsMeridian arc length measurements in Japan and the world. Comparison of the meridian arc length measurements in eighteenth century by Europeans (expedition to Ecuador and Lapland, northern Finland, in early eighteenth century and measurements by the French government to establish the metric system in late eighteenth century), and around 1802 by Ino and his team in NE JapanBack to article page