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A map of a route taken by the Dutch Christian missionary Johannes Albert Traugott Schwarz. Over four days, accompanied by Anton de Lange, he walked from Popo (Poopo) south through the Minahasa Peninsula. The map also shows an earlier aborted route.

Rivers and crops are the focus of this map of Deli (east coast of Sumatra). Forests and wetlands are marked, as are alang-alang, coconut, pepper, nutmeg and tobacco. Roads are shown as suitable for infantry and light artillery, or for horse riding.