TY  - RPRT
TI  - Geological Society of Washington, 58th Meeting, January 9, 1897
AU  - W.F. Morsell
PY  - 1897
DO  - 10.1126/science.5.113.361
UR  - https://pubs.usgs.gov/publication/70010870
ID  - 70010870
ER  -