Fig. 8
From: A revised digital edition of Wurm & Hattori’s Language Atlas of the Pacific Area
Area is computed as cartesian area of the polygon in square degrees. Close to the equator, an area of 1 corresponds roughly to 10, 000 km2. Distance is computed as cartesian distance in degrees. Close to the equator, a distance of 1 corresponds roughly to 100 km. For examples of the types of non-intersecting polygons see Figs. 9 and 10.
