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Subject
- Federal receipts and expenditures17
- Financial statements17
- Navigation improvements16
- Mine wastes14
- Rivers, creeks, streams, etc14
- United States. California Debris Commission14
- Aqueducts13
- Bridges12
- Construction12
- Mines and mineral resources12
- Monuments and memorials12
- Public buildings12
- Grounds maintenance11
- Harbors and ports11
- Lakes11
- Laws and legislation11
- United States. War Dept. Engineer Dept11
- Waste disposal in rivers, lakes, etc11
- Hydraulic mining10
- Canals9