Kung-Fu, or Tauist Medical Gymnastics, by John Dudgeon, [1895], at sacred-texts.com
No. 6.—Pai Yü-ch‘an (#) seizing his Food like the Tiger.—To cure twisting intestinal gravel.
This Figure is elsewhere termed—The Hungry Tiger seizing his Food.
The abdomen to the ground, the hands and feet with force to be turned upwards, move the air in 12 mouthfuls, and move the hands and feet right and left 3 × 5 times. Then sit up erect firmly, make the air advance by this kung in some 14 mouthfuls. (See Figure 6).
This corresponds with Amiot's No. 15, which is against gravel and sand in the kidneys; and he adds—"People speak well of its effects and cures."