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A map to aid navigation in Ambon Bay, on the island of Ambon in the Maluku Islands: bathymetry (sea depth) and mountains are shown along the coasts, with inset maps of a coal mine pier and Fort Victoria. A second map updates the coal mine pier map.

Details of each area’s resources are printed on this map of Sumatra: rattan, coffee, pepper, Chinese cinnamon, tobacco, resins, camphor, cotton, coal, gold, lumber, elephants, horses, as well as the locals’ ethnicity (Malays, Javanese, Acehnese).

A geological map showing the types of rock and minerals found in the Oembilien coalfield, in the Padang Highlands on Sumatra’s west coast. Coal, rocks and fossils are marked, and the heights of mountains are given.

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.

A geological map showing the types of rock and minerals found in Blinjoe district on the island of Bangka, off the east coast of Sumatra. Deposits of iron, quartz and tin are marked, and coral is shown at the coast.