TY  - RPRT
TI  - Sixteenth Annual Report of the United States Geological Survey to the Secretary of the Interior, 1894-1895: Part II - Papers of an economic character
AU  - Charles D. Walcott
PY  - 1896
DO  - 10.3133/ar16_2
UR  - https://pubs.usgs.gov/publication/ar16_2
ID  - ar16_2
ER  -