New and Correct CHART of the WESTERN and SOUTHERN OCEANS Shewing the Variations of the COMPASS according to the latest and best Observations
Originally produced by Edmund Halley (of Halley's Comet fame) in 1700, this map shows magnetic variations of the compass, with a double-line crossing just south of Bermuda indicating the line of no magnetic variation and is corrected to include improvements to Halley's method developed in 1744. Place names are focused on the coasts, with the otherwise blank interiors of the continents supporting decorative cartouches. An image of a pair of diving ducks appears near the southern tip of South America along with a note explaining that "animals of a middle species between a bird and fish" can be seen in the seas in the area. It is also interesting in that the graticule goes through the map rather than drawn on the borders.
Prime meridian is London, as shown in the map
W.& I. Mount & T. Page
1 map ; 58 x 49 cm
Our copy of this map from the English Pilot: The Fourth Book is from the 1767 edition. It is the only documented version published with both the Halley signature and the pasted on (at time of publication) border text missing.
North AmericaSouth AmericaEuropeAfrica
-102.509; 27.117; -63.747; 66.518;
W. K. Morrison Special Collection
The English Pilot
The Fourth Book. plate 1
J. Mount and T. Page and Son
This material is provided for research, education and private use only. Commercial use of this work is strictly prohibited. Attribution for use must be provided as follows: "Digital reproduction from the W. K. Morrison Special Collection of the J. B. Hall Library at the NSCC Centre of Geographic Sciences” and link to the original record. For use other than research, education or private uses please contact the J. B. Hall Library at the NSCC Centre of Geographic Sciences.