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A navigation map of the northern tip of Sumatra, featuring bathymetry (sea depth), reefs, shoals, and side views of landmark mountains (elevations). Lighthouses are highlighted in red and yellow, with lines to indicate the limits of their range.

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’).

Four maps of areas with lakes in Celebes (Sulawesi), including the lakes and main watershed of the South Peninsula. Three of the maps feature cross-section views (elevations) which show types of rocks.