Subject ASC0001gyl
The Quarterly journal of the Geological Society of London.
v.60 (1904), (1904)
Smithsonian Libraries
BHL Page 35259990
Keywords
IGNEOUS ROCKS PONTESFORD HILL SHROPSHIRE igneous rocks strata Shropshire geology magnified landscape pontesford hill shropshire igneous rocks Pontesford Hill photograph section magnified image igneous rocks igneus rock W. S. Boulton Geology