Nishihara, George Shikataro2016-03-092016-03-091914-05https://hdl.handle.net/11299/177895University of Minnesota Masters thesis. May 1914. 1 computer file (PDF); 27 pages.enThe Rate of Reduction of Acidity of Descending Waters by Certain Ore and Gangue Minerals and its Bearing Upon Secondary Sulphide EnrichmentThesis or Dissertation