The Laccolitic Mountain Groups of Colorado, Utah, and Arizona

On Hypersthene-andesite and on Triclinic Pyroxene in Augitic Rocks

On Hypersthene-andesite and on Triclinic Pyroxene in Augitic Rocks: Issues 1-6

Engineer Mountain Folio: Issue 171

Potash-bearing Rocks of the Leucite Hills, Sweetwater County, Wyoming

Engineer Mountain Folio, Colorado

Geology and Petrology of the San Juan Region, Southwestern Colorado: Issues 258-259

Geology and Mining Industries of the Cripple Creek District, Colorado

Contributions to the Mineralogy of the Rocky Mountains

Geology of the Denver Basin in Colorado

Geology of the Denver Basin in Colorado

Geology of the Denver Basin in Colorado

Geology and Ore Deposits Near Lake City, Colorado

Geology of the Denver Basin in Colorado

Guidebook of the Western United States: Part F. The Southern Pacific Lines, New Orleans to Los Angeles, Issues 843-846

The Lignites of the Great Sioux Reservation: A Report on the Region Between the Grand and Moreau Rivers, Dakota, Issues 15-23