DISCUSSION. THE CAUSES AND PREVENTION OF BED EROSION, WITH SPECIAL REFERENCE TO THE PROTECTION OF STRUCTURES CONTROLLING RIVERS AND CANALS.

Keywords: PREVENTION, BEDS, EROSION, PROTECTION, STRUCTURES, CONTROL, RIVERS, CANALS, WATERWAYS, APRONS, DAMS, FLOW, BARRAGES, MODELS, SLUICES, HORIZONTAL, VORTICES, REGULATION, FLOODS, VORTEX, MAINTENANCE, CURRENTS, WEIRS, GATES, TESTS, SILLS, LIPS, SUDAN, EGYPT, AFRICA, SENNAR, ASWAN, RIVER NILE, ASYUT