11. Covering a slope with rammed earth, burnt ballast, chalk, gravel, ashes, or other protective material.
12. Turfing a slope, or sowing it with grass seed.
13. Depositing layers of material, consolidated by ramming or otherwise, upon a slope at right angles or diagonally to the line of the foot of a slope.
14. By benching, or a terrace or cess upon a slope.
15. Covering the toe of a slope with stone pitching.
16. Dividing a slope by trenches filled with stones or absorbent material.
17. Weighting a slope to counteract the pressure of the internal water, and to restore the equilibrium.
18. A breast-high retaining wall at the toe of a slope.
19. Covering part or the whole of a slope with fascine mattresses or brushwood, systematically laid in combination with gravel, stone, broken bricks, ashes, &c.
20. Counterforts of gravel, chalk, burnt ballast, ashes, rubble, &c., at the toe and upon a slope.