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Map of part of the east coast of the Gulf of Papua, with river mouths, shoals, bathymetry (water depth). On land, notes on terrain (‘Hills 100 to 150 ft. high’), land (‘Good soil’), vegetation (‘Nipa and Sago Palms’) and people (‘Ipikoi Tribe’).

Map of the Penang Strait, including written instructions on how to navigate the strait. On land, areas of cultivation are marked, with a table listing acreage used for each crop. A boundary with Siam based on an 1831 treaty is also shown.

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.