There were no arrivals or departures at this port yesterday. The s.s. Kennedy and Waipara are expected to-day from Nelson and Hokitika. An exchange paper says : — We shall soon have ocean signal stations — telegrams meet ing a captain in mid-ocean, warning him J which way the wind is blowing a few hun dred miles ahead of him. At sea, as on land, all over the world there will soon be a simultaneous knowledge of where the storms are and what course they are taking. It is thought not to be at all beyond the resources of the age to have floating stations in deep water, secured by submerged buoys and con nected with a cable. Whether these will ever be converted into mid-ocean post offices to save the double voyage many letter bags take we will not hazard an opinion, but in surers of ocean freights will not be long satisfied without the means of protecting, by a storm signal, vessels that would otherwise be rushing to destruction. On March 29 the largest vessel ever built on the Clyde was launched from the yard of Messrs Laird and Co, Greenoek, for the In man Company's line of steamers. She was named the City of Chester, and is of 4800 tons burden, with a horse-power of 800. She can accommodate in all about 1400 pas sengers. The fitting-up of the new turret ships is being rapidly proceeded with at Woolwich. The Devastation has had her four 35-ton guns safely mounted, and the turrets in which they are lodged have been sighted. The Gorgon has four 10-inch guns of 18 tons ■weight each, and the sighting of her turrets also just completed. The Thunderer is to be supplied with four of the) 35-ton guns. None of the heavy guns for these turret ships are sighted, and are furnished with no other fittings than such as are required for raising and lowering the breech, for the turrets turn en masse, and the turrets are therefore sighted instead of the guns. 