Subject ASC0001266
The Quarterly journal of the Geological Society of London.
v.67 (1911), Page 474 (1845)
Smithsonian Libraries
BHL Page 39749376
Keywords
rocks monmouthshire monchiquite-dyke six microphotographs Monmouthshire Monchiquite-Dyke collotype Bemrose Ltd geology rock Geology slide photographs micrographs Monmouthshire Monchiquite-Dyke