TY  - DATA
TI  - Geological magazine : Vol. 9 Iss. 1-7, 9-12 Year. 1892
SN  - [00167568
U1  - 550 
PY  - 1892///
CY  - London 
PB  - Kegan Paul, Trench, Trubner & Co, Ltd 
KW  - Earth science
ER  -