'America goes back to work', Harpers
1917; 1920; 1920-8-1; 1920s; Ariz.; Arizona; Bisbee; Coal mines and mining; Coal mining; Copper Miners� Strike; Copper mines and mining; Description and travel; Earth Sciences; Economic conditions; Farmers; Geology; Henry Justin Allen; Hungerford, Edward; Kansas; Kansas City; Kansas City (Kan.); Labor unions; Mexi
'Night-light saving', Harpers
1920; 1920-8-1; 1920s; Caricatures and cartoons; Courtship; Fathers and daughters; General Physics; Physics; Systems and standards; Time; United States; Units and Measurement; Walker, A. B.
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