Subject ASC0003sj9
The geological magazine, or, Monthly journal of geology.
Decade 2:v.2 (1875), Page 253 (1875)
Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
BHL Page 32504284
Keywords
geology pumice specific density Island of Ischia silica alumina ferric oxide ferrous oxide lime magnesia potash soda composition obsidian Monte Rotaro iron Italy volcano map Monterotaro Monte Tabor crater Casamicciola cone lava volcanos Ischia Tabor Rotaro mountains landscapes sea houses landscape lava-stream quarries