[To THE EDITOR OF THE "SPECTATOR.") Six,—It is impossible to
accept Mr. Eggar's explanation of sunken roads, inasmuch as, apart from the extreme improbability cf watercourses being chosen for roads, storm water does not take the easiest gradient to the valley. On the contrary, unless inter- cepted, it takes the steepest. No doubt after the roads have become sunken, they do act as storm-water courses to a considerable extent. There is really no mystery about these roads. Every road gradually wears away, the disintegrated surface being blown away by wind and washed away by rain. An important contribu- tory cause is the gradient, so that, other things being equal, the greater the inclination the deeper the road. Roads which are properly repaired have their levels maintained. Those which are not gradually become deeper and deeper.-1 am, Sir, &c.,
Previous page
