Subject ASC0001hsz
The Quarterly journal of the Geological Society of London.
v.5 (1849), Page 295 (1849)
Smithsonian Libraries
BHL Page 35268939
Keywords
Geology Tiber Italy Monte Mario Villa Borghese Ponte Mario cross section woodcut blue marls yellow calciferous sandstone peperino tuffs travertine geology River Tiber strata rocks sand landscape geological drawing