The Gold Mines of Gilpin County, ColoradoSamuel Cushman (Writer on Gold Mines ), J P Waterman · First published 2015Open the Tome
Range Riders WesternLee E. Wells, Samuel Mines, Donald Bayne Hobart · First published 2009Open the Tome
Experiments to determine the minimum amount of coal-dust required for propagation of a mine explosionGeorge Samuel Rice, H. P. Greenwald, United States. Bureau of Mines · First published 1931Open the Tome
