Kung-Fu, or Tauist Medical Gymnastics, by John Dudgeon, [1895], at sacred-texts.com
No. 18.—Ko Hsien-wêng (#) opening the Thorax.—To cure the thorax of obstruction.
Stand erect, the feet placed after the Chinese figure of 8 (#); interlock the two hands, carry them to the front of the chest, rub them times without number, and move the air in 34 mouthfuls.
The Powder for widening the Centre.