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The routes of nine expeditions (1830 to 1869) are marked on this map. There are also short notes about trading (e.g. at Oonoung in Burmah: ‘A bazaar, with a great variety of European goods’), and a list of other maps referenced in producing the map.

A map to aid in the navigation of the rivers leading to Saigon (Ho Chi Minh City, Vietnam). Details include bathymetry (water depth), currents, and a side view (or ‘elevation’) of hills to use as a landmark. Tides are described in written remarks.