Person foreign visitor writer naval officer
De Bory
foreign visitor · writer · naval officer
French author who described his voyage to Madeira in the Mémoires of the Académie Royale des Sciences for 1772 (published 1776). He visited in 1755 aboard the Cometa and reported the magnetic variation of the compass.
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- Scientific expeditions — French observer who visited Madeira in 1755 aboard the Cometa and studied magnetic variation.
- Magnetic declination — French visitor of 1755 who reported compass variation observed aboard the Cometa.