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Map of the coastline of the bay of Batavia (Jakarta) showing the extension of the port’s pier (in red, labelled CD), the sand and mud bank and bathymetry (sea depth) in the bay, and notes regarding changes in tide levels over the years.

Plan of the canals and rivers flowing through the city of Batavia (Jakarta), passing through the port before reaching the pier and the bay. The bay has a sand bank and figures for water depth. There are profile drawings of two of the city’s rivers.

Map focusing on the passage between Penang Island and the mainland, with shoals and reefs marked and described, and bathymetry (sea depth) shown. There are anchor points at George Town harbour, and landmarks—hills, trees, a fort—to aid navigation.

Map focusing on the passage between Penang Island and the mainland, with shoals and reefs marked and described, and bathymetry (sea depth) shown. There are anchor points at George Town harbour, and landmarks—hills, trees, a fort—to aid navigation.