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- Gold mining and milling methods and costs at the Vallecito Western Drift mine, Angels Camp, Calif.
- Milling methods and costs at the concentrator of the Premier Gold Mining Co., Ltd., Premier, B.C., Canada
- Milling methods and costs at the concentrator of the St. Joseph Lead Co., Atlanta, Idaho
- Gold mining and milling in the Black Canyon area, Yavapai County, Ariz.
- Mining and milling methods at the Pilgrim mine, Chloride, Ariz.
- Gold mining and milling in Idaho County, Idaho
- Gold mining and milling in northeastern Oregon
- Saving gold by means of corduroy