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This map is concerned with trade in the Dutch East Indies, highlighting useful resources such as maritime routes, railways, telegraph lines and offices, coast and harbour lights, offices of officials, areas that apply tolls and duties etc.

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).

Nine maps of the effects of the 1883 Krakatoa volcanic eruption, including on Rakata Island itself, and Calmeyer Island (formed by the eruption). Other maps use brown shading to show the flooding of nearby islands and settlements by ensuing tsunamis.

A map of the effects of the 1883 Krakatoa volcanic eruption. The orange line is the islands’ outline pre-eruption; the red line is the boundary of the collapsed area. Red numbers are sea depth. Pre- and post-eruption sizes of the islands are listed.

The Aceh War (1873–1904) between the Sultanate of Aceh and Dutch colonists is highlighted on this map of Groot-Atjeh in 1876. Flag symbols mark the locations of Dutch troops, while a red line records the route marched by ‘agitating troops’ in 1875-6.

The Aceh War (1873–1904) between the Sultanate of Aceh and Dutch colonists is highlighted on this map of Groot-Atjeh in 1876. Flag symbols mark the locations of Dutch troops, while a red line records the route marched by ‘agitating troops’ in 1875-6.