Clear of harbour limits and heading out to the shoals, a brisk rigging of gear and tackle brings action to the decks of the salvage steamer. Already we had thought the narrow confines from bulwark to bulwark congested by the bulk of appliances, but, from hole and corner and cunning stowage, further coils and shoots and lengths of flexible, armoured hose are dragged and placed in readiness for operations. Derricks are topped up and purchases rove for handling the heavy twelve-inch motor-pumps. Hawsers are uncovered and coiled clear, stout fenders thrown over in preparation for a grind alongside the wreck. Mindful of possibilities, the engineer-lieutenant and his artificers go over the insulation of their power leads in minute search for a leak in the cables that may occasion a short circuit later on. The terminals and couplings are buffed and polished with what seems exaggerated and needless precision--but this is salvage, where sustained effort is only possible in the rare and all-too-brief union of favourable tide and weather conditions. A cessation of the steady throw of the pumps, however instant and skilful the adjustment, may mean the loss of just that finite measure in buoyancy that could spring the weight of thousands in tons. Second chances are rarely given by a grudging and jealous sea; there must be no hitch in the gear, no halt in weighing the mass. A drift of lazy smoke on the sea-rim ahead marks our rendezvous, where _Titan_ and a sisterly tug-boat are already at work on the wreck. A screen of motor-patrols are rounding and lining out in the offing, with a thrust of white foam astern that shows their speed. Coastwise, a convoy of merchant ships zigzag in confusing angles on their way to sea, guarded by spurring destroyers and trawler escort. Seaplanes are out, hawking with swoop and wheel for sight of strange fish. The seascape is busy with a shipping that must remind the coastguard and lightkeepers of old and palmy days when square sail was standard at sea. The Westmark Shoal lies some distance from the normal peace-time track of direct steaming courses. It lies in the bight of a bay, where rarely steamers closed the land. Sailing ships, close-hauled and working a tack inshore, or fisher craft on their grounds, had long been the only keels to sheer water in the deeps, but war practice has renewed our acquaintance with many old sea-routes and by-paths, and we are back now to charts and courses that have long been out of our reckoning.