Written caption: "Entrance to a Reading anthracite mine. These miners are shown aboard a 'gun boat' descending by an inclined slope into one of the mines of the Philadelphia and Reading Coal & Iron Co."
Written caption: "The main conveyors. These belts are four feet wide and carry raw coal up an inclined plane to the top of the breaker at rate of 1600 tons an hour."
Written caption: "How Reading anthracite is screened. Exactly sized screens, operated by powerful electric motors, accurately separate the coal into eight classifications or sizes."
Written caption: "The lowering conveyors. The prepared sizes of Reading anthracite are loaded into freight cars without breakage by the devices which are electrically operated and lowerd into the cars so that the coal is deposited gently and...
