Subject ASC0003xvz
The geologist : a popular monthly magazine of geology.
v.2 (1859), Page 19 (1859)
American Museum of Natural History Library
BHL Page 47679406
Keywords
sand soil clay straigraphy granite rock section strata permellin bay mount flagon flagon ash red chocolate block grit rubble mass angle Soil surface soil ash-colored sand coarse granite decomposed granite granite-rock