Sea Walls or Breakwaters.

For this line of ships the question of accommodation page 133 in the Colony is very clamant at present. In too many of our harbours on the East Coast the water is very shallow. On the West Coast, harbours in numbers and great depth are existent, but there they are not required. It seems to me that the best solution of the difficulty is by a wall of concrete blocks run out to water of the proper depth, at places as near as can be found to the chief towns on the coast, or to the railway. The plan of dredging a natural harbour to such depths, and keeping the harbour at the depth needed, would be a most onerous affair. Those sea walls, since concrete is used, can now be built to withstand the sea, and on every part of a coast. The salt water in its chemical action does not seem to affect their stability.