Iron-Depositing Bacteria and Their Geologic RelationsEdmund Cecil Harder · First published 1919 · Latest edition 2023Open the Tome
Manganese deposits of the United States with sections on foreign deposits, chemistry, and usesEdmund Cecil Harder · First published 1910Open the Tome
The Iron Ores Of The Iron Springs District, Southern UtahCharles Kenneth Leith, Edmund Cecil Harder · First published 2018Open the Tome
Preliminary report on the geology of east central Minnesota including the Cuyuna iron-ore districtEdmund Cecil Harder · First published 1918Open the Tome
Iron-ore deposits of the Eagle Mountains, CaliforniaEdmund Cecil Harder · First published 1912Open the Tome
The joint system in the rocks of southwestern Wisconsin and its relation to the drainage networkEdmund Cecil Harder · First published 1906Open the Tome