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This map of mainland Southeast Asia features short texts noting mines, trade routes and travel times (‘5 to 7 days on Elephants’), history (‘conquered by the King of Siam 1809’), peoples (‘states tributary to the Chinese’) and products (‘Tea Tree’).

Map of the Indian Ocean showing the currents (represented by arrows), including during the North East and North West monsoons. Numbers on the arrows indicate the current’s speed.

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.

A world map showing winds, hurricanes and typhoons, including trade winds, calms, typhoon, monsoon and hurricane regions in Southeast Asia. An inset map shows the approach of the Rodriguez Hurricane towards Java in 1843.

A world map, including Southeast Asia, showing rainfall information (darker shading indicates greater rainfall). Southeast Asia lies in the ‘Zone of the Periodical Rains’, and is marked with monsoons and ‘Electrical Explosions’.

The arrows on this map mark the direction of the seasonal monsoons experienced in the South China Sea and Philippine Sea during the late 18th century. Each arrow has a label indicating the month.

Coloured borders on this map show the kingdoms of mainland Southeast Asia and the Philippines. Arrows marked on the sea to the west of the Philippines indicate wind direction during the monsoon seasons (with the months marked in French).

The arrows on this map show the direction of the seasonal monsoons of Southeast Asia during the late 18th century. Each arrow has a label in French, indicating the month. The hatched sea areas are where the winds always blow in the same direction.

Map dedicated to William Cowper, whose coat of arms sits atop the cartouche. It features two horses holding a crest with three martlets (mythical birds used in heraldry). The cartouche also features Asian traders. Monsoons are marked on the map.

This map showcases the colonial territories of Southeast Asia in the 18th century, with text detailing trading information and the products of each region. There are five inset maps featuring plans of specific trading ports.

This map showcases the colonial territories of Southeast Asia in the 18th century, with text detailing trading information and the products of each region. There are five inset maps featuring plans of specific trading ports.

This map showcases the colonial territories of Southeast Asia in the 18th century, with text detailing trading information and the products of each region. There are five inset maps featuring plans of specific trading ports.