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Subject
- History33
- Interstate agreements22
- Legislative amendments20
- Cost17
- Rivers, creeks, streams, etc15
- Fort Delaware (Delaware)13
- Land titles13
- Military bases and posts13
- Water and water supply12
- Federal-state relations11
- United States. War Dept11
- Gale, Henry10
- Land claims10
- Fisheries and fishing industry9
- Islands9
- Navigation improvements9
- Fishery regulation and management8
- Harbors and ports8
- State laws8
- Flood control7