AN ELECTRIC LOCOMOTIVE MOVING A MINE TRAIN
Many a mine mule has hee-hawed with delight as his life sentence
to hard labor in an underground prison has been commuted by the
arrival of electric transportation. The Sharp-nosed sticks in
the foreground are "sprags" to be stuck between the
spokes of the car wheels to brake or "scotch" them.
They have left their imprint upon the vernacular of the coal region,
since to "sprag" a scheme is effectually to block it.
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