TY  - BOOK
AU  - Clarke,Frank Wigglesworth
TI  - Analyses of rocks from the laboratory of the United States Geological survey, 1880 to 1903,
T2  - U.S. Geological survey. Bulletin
AV  - QE75 .B9 no. 228
PY  - 1904///
CY  - Washington
PB  - Govt. Print. Off.
KW  - Rocks
KW  - Analysis
N1  - Subject series : D, Petrography and mineralogy, 26; E, Chemistry and physics, 40; Includes index
ER  -