Search U.S. government technical reports digitized or harvested by TRAIL.
Analyses of rocks and minerals from the laboratory of the United States Geological Survey, 1914-36,
Trends in exploration of mineral deposits
A nomogram for obtaining percent composition by weight from mineral-grain counts
Using probability models as a basis for making decisions during mineral deposit exploration
Linear discriminant analysis of multivariate assay and other mineral data
A multistage probability model of sample reduction in the mineral industries