Books by Douglas M. Sheridan
Chemical data concerning Prote
Chemical data concerning Proterozoic ores and rocks from the Sedalia mine area, Chaffee County, Colorado
Precambrian deposits of zinc-c
Precambrian deposits of zinc-copper-lead sulfides and zinc spinel (gahnite) in Colorado
Preliminary report on the geol
Preliminary report on the geology of the Sedalia mine area and its Proterozoic deposits of base-metal sulfides and gahnite, Chaffee County, Colorado
Mineralogy and geology of the
Mineralogy and geology of the wagnerite occurrence on Santa Fe Mountain, Front Range, Colorado
Rutile and topaz in Precambria
Rutile and topaz in Precambrian gneiss
Geology and uranium deposits of the Ralston Buttes District Jefferson County, Colorado