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Geological map of Java and Madura, showing rock types and the locations of volcanoes. There are two cross sections (elevations) showing the heights of terrain: one of Java; and one from Cambodia to the Indian Ocean, including Borneo and Java.

A geological map, spread over eight sheets, showing the types of rock and minerals found in the Oembilien coalfield, in the Padang Highlands on Sumatra’s west coast. There are also additional geological profiles.