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Southeast Asia is on sheet four of this map. British colonial territory—British Burma, the Straits Settlements, Sarawak, Brunei, British North Borneo—is highlighted in red, with Dutch, Spanish, French and Portuguese territory also shown.

To aid navigation, this map shows small islands, shoals and reefs, maritime routes for use during monsoons or at particular times of the year, bathymetry (sea depth), tide information, shipwrecks, compass roses and landmark mountains at the coasts.

Map of the East Indies in the mid-19th century, with the borders of Dutch colonial territory (Dutch East Indies) marked in brown.

Map of the East Indies in the mid-19th century, with the borders of Dutch colonial territory (Dutch East Indies) marked in brown.

A late 18th century map of Asia, with notes on the principal states, empires and kingdoms of Asia written in French on the right-hand side.