Manual of military engineering . in with earth. The slope wall depend on the strength of the timber, f will generally be safe. The stakes should be anchored. Planks should never be used for revetments where they will be exposed to the fire of high explosive shells. Willesclen 49. Willesden canvas.—This is kept as an article of store, canvas [^ \ojig strips about 3 feet wide. For use, stout pickets should ? be driven from 12 inches to 18 inches apart and anchored. The canvas will then be stretched between these and the parapet, being laced with wire to the pickets top and bottom at about 6 feet
Manual of military engineering . in with earth. The slope wall depend on the strength of the timber, f will generally be safe. The stakes should be anchored. Planks should never be used for revetments where they will be exposed to the fire of high explosive shells. Willesclen 49. Willesden canvas.—This is kept as an article of store, canvas [^ \ojig strips about 3 feet wide. For use, stout pickets should ? be driven from 12 inches to 18 inches apart and anchored. The canvas will then be stretched between these and the parapet, being laced with wire to the pickets top and bottom at about 6 feet intervals (Fig. 6). Wire 50. Wire netting with stakes passed in and out of the meshes netting ^j^^j anchored back forms a good revetment in soils which are revetment. j. , i not too sandy. All revetments of parapets intended for musketry fireshould be finished off with one or two courses of sods or sand-bags, where available. For estimate of material required for revetments, see table^p. 120 vuue. ;o. Revetmep^ts Brushwooo. OANHBAGS ^.e: CcLnx^aJi ^^ ^-
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