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Subject
- Military engineering134
- Federal receipts and expenditures83
- Financial statements82
- United States. War Dept. Engineer Dept70
- Harbors and ports62
- Hydrographic surveying62
- Navigation improvements61
- Rivers, creeks, streams, etc57
- Coast defenses55
- United States. Army. Corps of Engineers52
- Bridges49
- Military construction42
- Snags and snagging42
- Construction38
- Aqueducts37
- Fortification36
- Military bases and posts35
- National parks and reserves35
- Government contractors34
- Public buildings34