CORRESPONDENCE. RECENT DOCK EXTENSIONS AT LIVERPOOL.

Keywords: DOCKS, EXTENSIONS, SLUICES, SAND, BARS, IMPROVEMENT, RIVERS, CEMENT, SEA, WATER, BANKS, CHANNELS, TIDAL, ESTUARIES, PORTS, HARBOURS, SANDBANKS, WET, NEAP, TIDES, ENTRANCES, SHIPS, WALLS, SILLS, SILT, SLUICING, SHOALS, REMOVAL, MACHINERY, PLANT, MAINTENANCE, NAVIGATION, DREDGERS, DREDGING, TRAINING, WORKS, LIVERPOOL, MERSEY, ENGLAND, HOWLAND, THAMES, TILBURY, UK