Rare English Sea Chart of the World

A large sea-chart of the world, on Mercator's Projection as revised by Edward Wright, whose corrections improved accuracy for navigation. It shows California as an island, and has been updated with the Mississippi and the Great Lakes in North America and the supposed east coast of Australia (half-a-century before Cook), and adds emphasis to the prevailing winds and tides.

Published in 'The English Pilot... the third book', Thornton has included the latest scientific advances. However he still includes the traditional fillers for unknown territory: elephants, camels and polar bears.