An Extract of a Letter from Dr. Robert St. Clair, to Dr. Rob. Hook, F. R. S. Giving an Account of a Very Odd Eruption of Fire out of a Spot in the Earth Near Fierenzola in Italy, with an Easy Cantrivance of a Lamp to be Kept Always Full Whilst It Burns

Zdroj:	Philosophical Transactions (1683-1775), 1698 Jan 01. 20, 378-381.
Databáze:	JSTOR Journals
Externí odkaz:	https://www.jstor.org/stable/102557 Zobrazit plný text záznamu