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A series of four maps of the Indian Ocean—one for each quarter of the calendar year—showing the direction and intensity of the winds, including around the seas of Southeast Asia. There are extensive explanatory notes.

A map of Southeast Asia coloured to indicate the five different language families spoken in the region in the late 19th century. Names of indigenous tribes/languages are marked in red text, with European colonial possessions in grey.

A map of Southeast Asia coloured to indicate the five different language families spoken in the region in the late 19th century. Names of indigenous tribes/languages are marked in red text, with European colonial possessions in grey.

This detailed map of the Dutch East Indies in the mid-19th century contains a great deal of information: topographical details, settlements and administrative areas, roads, railways and maritime routes, telegraph lines, inset maps etc.

On the main map, the volcanic regions of Southeast Asia are labelled, active and extinct volcanos are marked, and the 1815 eruption of Tumbora (Mount Tambora on Sumbawa) is highlighted. Even more details are shown on an inset map of Southeast Asia.

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.

Mountain chains are represented by black lines; volcanoes by black dots. Three insets maps: expansion of Reguain—island of Taung-ywa, off the coast of Myanmar—due to volcanic activity; geology of Java (with heights of mountains); volcanoes of Luzon.

On the main map, the volcanic regions of Southeast Asia are labelled, active and extinct volcanos are marked, and the 1815 eruption of Tumbora (Mount Tambora on Sumbawa) is highlighted. Even more details are shown on an inset map of Southeast Asia.

The colonial possessions of Britain, the Netherlands, Spain, Portugal and Denmark are shown on this mid-19th century map of Southeast Asia. There are inset maps of Penang Island and Singapore, and text describing the region’s colonial history.