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- Pilot-plant investigations :matte smelting of Chamberlain, S. Dak., Manganese ore
- Beneficiation of scheelite ore from the Sangdong Mine, Korea
- An investigation of some variables in the treatment of scheelite with soda ash
- Flotation of unoxidized maganiferous material from the Cuyuna Range, Minn.
- Selective flotation of fine-grained lead-zinc sulfides from Idaho and Washington