Subject ASC0003s61
The geological magazine, or, Monthly journal of geology.
[Decade 1]:v. 2 (1865), Page 380 (1865)
Smithsonian Libraries
BHL Page 30540784
Keywords
landscape roads drawing Vale of Clwyd Geology Map Mountain-limestone Strata Permian Strata Geological Survey Stones Geological Survey Map Geological Magazine Sandstones Shales Slates strata permian strata vale of clwyd llandegla llandfair chapel permian marls shales sandstone slate grits denbughshire flags upper siluriuan limestone