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Map of Collingwood Bay, north coast of New Guinea, with bearings to mountains, bathymetry (sea depth), shoals and reefs. On land, notes on terrain (‘sloping plains’, ‘Stiff clay soil’), vegetation (‘Casuarina trees’) and people (‘FRIENDLY TRIBE’).

Three maps on one sheet of the Fly River in British New Guinea, from the mouth to where it meets the Palmer River. Bathymetry (water depth) and sandbanks are marked at the mouth and landmarks—hills, vegetation, villages—are noted along the length.