TY  - BOOK
AU  - Lewis,Henry Carvill
TI  - The great ice age in Pennsylvania
AV  - QE697 .L61
PY  - 1883///]
CY  - [Philadelphia?
PB  - Franklin Institute?
KW  - Geology
KW  - Pennsylvania
KW  - Glacial epoch
N1  - Cover title; "Abstract of a lecture, delivered at the Franklin Institute, January 5, 1883."; "Reprinted from the Journal of the Franklin Institute, April, 1883."
ER  -