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18 inches acre advantages afford alumina amongst argillaceous barrows catchwater drains channels clay clayey coast considerable cost covered crop cubic foot cubic yard degree delph deposits depth diagram dike distance drainage drains dykes earth earth-work effect eligible EMBANKING LANDS engineers Essex expense feet wide fertility Flintshire foreland frontager grass gravel H. H. Price half-cube height horses Inclosure Acts intake kind labour land side less Lincolnshire line of bank London clay loose low water low-water main bank marshes material matter means mile mode nature ordinary springs outburst particles parties piles planks points portion projectors proprietors quantity Railway render require requisite rills rivers salt samphire sand sandy sea-bank sea-walls seaward shore shutting slobs slope sluices soakage soil spot spring tides stone facing sufficient surface thickness tillage tram-roads vegetation waggons wave whilst whole wide at top width wind
Página 27 - ... st. The main bank, built to the full height of ordinary spring tides, which is taken by way of example at 10 feet. It is 20 feet wide at top, and with a slope to sea side, partly of 5 feet base, and partly of 4 feet base, to 1 perpendicular, as the minimum slopes. " 2nd. The outburst bank, 5 feet high and 8 feet wide at top, and with a slope of but...