TY  - BOOK
AU  - Wadsworth,Marshman Edward
TI  - Preliminary description of the peridotytes, gabbros, diabases and andesytes of Minnesota
T2  - Minnesota. Geological and natural history survey. Bulletin
AV  - QE127 .A22
PY  - 1887///
CY  - St. Paul
PB  - The Pioneer press company
KW  - Petrology
KW  - Minnesota
N1  - Each plate accompanied by leaf with descriptive letterpress
ER  -