Subject ASC00013d3
The Quarterly journal of the Geological Society of London.
v.50 (1894), Page 237 (1894)
Smithsonian Libraries
BHL Page 39089007
Keywords
map Waldensian Gneisses geology Allbergian Dora Riparia Monte Viso Bobbio Zaccagna crisolo merciantiara Giordani Central Gneiss