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1699 Halley.

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In 1699, that celebrated astronomer, Dr. Edmund Halley, was appointed to the command of his majesty's ship the Paramour Pink, on an expedition for improving the knowledge of the longitude, and of the variation of the compass; and for discovering the unknown lands supposed to lie in the southern part of the Atlantic Ocean. In this voyage he determined the longitude of several places; and, after his return, constructed his variation-chart, and proposed a method of observing the longitude at sea, by means of the appulses and occultations of the fixed stars. But, though he so successfully attended to the two first articles of his instructions, he did not find any unknown southern land.

A Voyage Towards the South Pole and Round the World (Vol. 1&2)

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