Mr. A. Langerfeld and one of his machines for picking coal which does away completely with the use of breaker boys. The percent of slate that goes in with the coal separated by this machine is 1% to 2%, where the percent with the old primitive method of using boys is from 15% to 60%. This picture was taken at the breaker of the Spencer Coal Co., at Scranton, Pennsylvania, on March, 18, 1913. Location: Scranton, Pennsylvania.