Low Water Line.

The line of l.w.m. on the sand beach outside the West breakwater, advanced seaward during the construction of the breakwater, Until at the pre- page 6 sent time, it is 33 chains seaward of the original l.w. line. The l.w. line outside the East breakwater advanced in a similar manner. If the l.w.m. is not now stationary, it is advancing very slowly, and it is to be hoped that, as in the case of Greymouth, it may soon become stationary, that is to say, that the condition will be readied in which the currents carry round the end of the breakwater just as much sand as they bring up from the Southward. As noticed above, the bar keeps its depth, although in very low states of the river the sand drifted round the end of the West breakwater forms a spit protruding towards the head of the East breakwater; but the first flood scours this away, and restores the depth lost. The same thing is experienced in Greymouth, where the depth has been permanent for a long time.