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- Catron and Sierra Counties tin deposits, N. Mex.
- Investigation of the Buckeye manganese deposits, Stanislaus County, Calif.
- Investigation of the Ladd manganese deposits, San Joaquin County, Calif.
- Investigation of Smuggler lead-zinc mine, Aspen, Pitkin County, Colo.
- Investigation of the combination silver-tungsten mine, Granite County, Mont.