Observations of the Diurnal Variation of the Magnetic Needle, in the Island of St. Helena; With a Continuation of the Observations at Fort Marlborough, in the Island of Sumatra. By John Macdonald, Esq. In a Letter to the Right Hon. Sir Joseph Banks, Bart. K. B. P. R. S.

Autor:	Macdonald, John
Zdroj:	Philosophical Transactions of the Royal Society of London, 1798 Jan 01. 88, 397-402.
Databáze:	JSTOR Journals
Externí odkaz:	https://www.jstor.org/stable/106985 Zobrazit plný text záznamu