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A series of four maps of the Indian Ocean—one for each quarter of the calendar year—showing the direction and intensity of the winds, including around the seas of Southeast Asia. There are extensive explanatory notes.

Southeast Asia is shown on sheets two and three of this 12-sheet map of the Indian and Pacific oceans, including detailed inset maps of the straits of Singapore, Bangka, Gaspar and Sunda, with bathymetry (sea depth), shoals, reefs, anchorages etc.

To aid navigation, this map shows small islands, shoals and reefs, maritime routes for use during monsoons or at particular times of the year, bathymetry (sea depth), past explorers’ routes, shipwrecks and text about monsoons, typhoons and currents.

This map of Asia is dedicated to Prince William, Duke of Gloucester, and features a drawing of his coat of arms. He had been in line to succeed to the English throne, but died at the age of 11 in 1700, the year before this map was produced.