This interesting world map is depicted on a north polar projection and features California as an island. South America includes several conjectural lakes, and in Africa the source of the Nile River is shown as two large lakes south of the equator. New Guinea and Australia (Nova Hollandia) are only partially delineated. The Pacific Ocean is left largely blank, with partial outlines of two landmasses: one northwest of North America and the other just east of Japan. Below the map are three astronomical diagrams.