Subject
Water resources development
4
Bench-marks
3
Forest surveys
3
Hydrology
3
Kansas
3
Kansas Altitudes
3
Leveling
3
Excavations (Archaeology)
2
Forests and forestry
2
Fort Larned National Historic Site (Larned, Kan.) Antiquities
2
Geophysical surveys
2
Hydrology Research
2
Indians of North America Antiquities
2
Bridges
1
Flood control
1
Geological mapping
1
Geological surveys
1
Groundwater
1
Hydrogeological surveys
1
Kit fox
1
Lumber trade
1
Planning
1
River surveys
1
Timber
1
Water Pollution
1
Water quality
1
Water quality management
1