Step 15.
Step 17.
Step 19.
13. Lie down on his back, and raise his body from an horizontal to a vertical position, without any assistance from the hands or elbows.
14. Draw up the legs close to the posterior part of the thighs, and rise without other assistance.
15. Extend himself on his back again, and walk backwards with the palms of his hands and his feet.
16. Sustain the weight of the whole body upon the palms and the toes, the face being towards the ground.
17. Lie on his back, and take hold of each foot in his hands, and throw himself on his face by rolling over.