Nova et exacta delineatio Americae partis avstralis. qve est : Brasilia, Caribana, Gviana regnũm noũũm, Castilia del Oro, Nicaragva, insũlae Antillas et Perv. Et sub Tropico Capricorni, Chile, Rio della Plata, Patagonṽ, & Fretṽ Magellanicv̄.
Summary
Title appears on upper sheet of the map; no indication of title or imprint on lower sheet.
The map was engraved for the second edition of the fourth part of Hulsius' collection of voyages, which consists of 26 parts. In this second edition of the map, three islands have been inserted below the bottom border of the lower map, with the name "Francisi Draco Ins." Several new names were added to this edition of the map, along with the west coast of South America, as well as the plate mark "No. 2" in the lower left corner of the lower map. -- Drake coll.
Kraus, H.P. Sir Francis Drake, 52
Available also through the Library of Congress web site as a raster image.
Gift of Hans P. and Hanni Kraus.
In the 17th century, maps took a huge leap forward. Mathematical and astronomical knowledge necessary to make accurate measurements had evolved. English mathematicians had perfected triangulation: navigation and surveying by right-angled triangles. Triangulation allowed navigators to set accurate courses and produced accurate land surveys. Seamen learned to correct their compasses for declination and had determined the existence of annual compass variation. Latitude determination was greatly improved with the John Davis quadrant. The measurement of distance sailed at sea was improved by another English invention, the common log. Longitudinal distance between Europe and Québec was determined by solar and lunar eclipses by the Jesuit Bressani in the 1640s and by Jean Deshayes in 1686. With accurate surveys in Europe, the grid of the modern map began to take shape.
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