Plate 27v.—Arrangement of a sunken road.
Hedges and woods:
Dig a trench behind the hedge and throw the earth against it; make openings in the hedge to facilitate view and fire (Plate 27w). If the hedge is low, deepen the trench, but make the parapet lower than the hedge which masks it.
Plate 27w.—Arrangement of a hedge.
Plate 27x.—Arrangement of the edge of a wood.