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From a Dutch geographical society journal, this map of the west coast of Atjeh (Aceh), Sumatra, shows shoals, reefs, bathymetry (sea depth) and anchor points. On land, there are mountains (with heights), rivers, pepper plantations and rice fields.

Included in a book chapter describing the northern peninsula of Halmahera, this map focuses on the coasts and nearby islands, with the interior left mostly blank. There are seven elevation views of mountains, and two inset maps.