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Santa Fe R.R. trains going through Cajon Pass in the San Bernardino Mountains, Cajon, Calif. On the right, streamliner "Chief" going west; in the background, on the left, a freight train with a helper engine, going east. Santa Fe trip
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Children in the tenement district, Brockton, Mass.
Electric phosphate smelting furnace used in the making of elemental phosphorus in a TVA chemical plant in the Muscle Shoals area, Alabama
Electric phosphate smelting furnace used in the making of elemental phosphorus in a TVA chemical plant in the Muscle Shoals area, Alabama