Discovery by Baron Nordenskjöld That Fresh Water Will Be Found by Boring through Hard Crystalline Rock for 30 to 35 Metres

Autor:	Markham, Clements R.
Zdroj:	The Geographical Journal, 1897 Nov 01. 10(5), 465-469.
Databáze:	JSTOR Journals
Externí odkaz:	https://www.jstor.org/stable/1774379 Zobrazit plný text záznamu