Ochers and Mineral Pigments of the Pacific Northwest Occurrence

Possible Methods of Preparation, and Testing of Ochers, Siennas, and Colored Clays

by Charles Holmes Herty, Clifford Cook Furnas, Eugene Delos Gardner, George Samuel Rice, Henry Kreisinger, Hewitt Wilson, L. C. Ilsley, Walter Richard Crane, William Wallace Odell, Ernest J. Gleim, John Marshall Gaines, W. R. Argyle, William Waugh Adams, Hilary Breton Brunot, William Elmer Rice