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The seas of the Dutch East Indies are the focus of this map, with maritime routes, sea temperature, sea depth, currents and monsoons shown. There are graphs of population by ethnicity, agriculture and livestock, trade and shipping, and trade exports.

Three maps of the Caroline Islands. One shows colonised areas in Southeast Asia: Dutch East Indies; British North Borneo, British New Guinea; German New Guinea; Philippines (Spain); Portuguese Timor. The route of the Challenger expedition is marked.

A map charting the effects of the 1883 Krakatoa volcanic eruption: a red circle where the eruption was heard; black lines showing the hourly spread of the resulting waves; and a list of ships on which ash fell, or that encountered pumice (with date).

Chart of the Indian Ocean, showing climate and weather-related data, including around the seas and straits of Southeast Asia where trade routes are marked, along with monsoon and typhoon regions, and currents during the different monsoon seasons.

Chart of the Pacific Ocean, showing climate and weather-related data, including around the seas and straits of eastern Southeast Asia where maritime trade routes are marked, along with monsoon regions, ocean temperatures and currents.

Southeast Asia is shown on sheets two and three of this 12-sheet map of the Indian and Pacific oceans, including detailed inset maps of the straits of Singapore, Bangka, Gaspar and Sunda, with bathymetry (sea depth), shoals, reefs, anchorages etc.

This mid-17th century Italian map shows the eastern islands of maritime Southeast Asia. Text on the map refers to winds (‘Venti’), currents (‘Corrente’) and air temperature (‘L'Aria è Calda e Humida [The air is hot and humid]’).