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- Agriculture --Alaska1
- Agriculture --Colorado1
- Agriculture --Texas --Texas Panhandle1
- Agriculture--Idaho--Pictorial works1
- Automobile travel --West (U.S.)1
- Cattle trade--Colorado1
- Exhibitions.5
- Homestead law --North Dakota1
- Homestead law --South Dakota1
- Indian pottery--North America2
- Indians of North America4
- Indians of North America --Education --South Dakota1
- Irrigation --Arizona2
- Irrigation --Colorado 1
- Irrigation canals and flumes--Arizona--Salt River Valley--Pictorial works1
- Irrigation farming --West (U.S.)1
- Labor and laboring classes --United States3
- Labor unions--Social aspects--United States2
- Labor unions--United States3
- Land use --Kansas1
