Author: SENHOR DA SILVEIRA.
Title: A Table of the Mean Declination of the Magnet in each Decade from January 1858 to December 1863, derived from the Observations made at the Magnetic Observatory at Lisbon; showing the Annual Variation, or Semiannual Inequality to which that element is subject. A rare original article from the Proceedings of the Royal Society of London, 1863.
Description: Proceedings of the Royal Society of London, 1863, Vol 13. 1863. First Edition, Disbound. Very Good Condition. 3 pages, textual figures. Note; this is an original article separated from the volume, not a reprint or copy. Size: Octavo. Quantity Available: 1. Category: Royal Society of London; Inventory No: 176374.

Keywords: BZDB395 Royal Society of London; A Table of the Mean Declination of the Magnet in each Decade from January 1858 to December 1863 derived from the Observations made at the Magnetic Observatory at Lisbon showing the Annual Variation or Semiannual Inequality


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