From the hill top, this harbour appears as a pleasant cove lying among green hills. On the map, it has something the outline of a blacksmith's anvil. Taking the narrow entrance channel to be the column on which the anvil rests, there extends to the right, a long tapering bay, stretching down to a village leading over hill, over dale to tumble-down Cloyne, where saintly Berkeley long meditated on the non-existence of matter; there lies to the right a squarer, blunter bay through which a river has worn a channel. This channel lies close to the shore, and serves as the anchorage. Over the tops of the headlands, rain-coloured and tilted up to a bank of grey eastern cloud, lay the vast ambush, the merciless gauntlet of the beleaguered sea. VIII THE DESTROYER AND HER PROBLEM About a quarter of a mile apart, one after the other along the ribbon of deep water just off the shore, lie a number of Admiralty buoys about the size and shape of a small factory boiler. At these buoys, sometimes attached in little groups of two, three, and even four to the same ring bolt, lie the American destroyers. From the shore one sees the long lean hull of the nearest vessel and a clump of funnels all tilted backwards at the same angle. The air above these waspish nests, though unstained with smoke, often broods vibrant with heat. All the destroyers are camouflaged, the favourite colours being black, West Point grey and flat white. This camouflage produces neither by colour nor line the repulsive and silly effect which is for the moment so popular. Going aboard a destroyer for the first time, a lay observer is struck by their extraordinary leanness, a natural enough impression when one recalls that the vessels measure some three hundred feet in length and only thirty-four in width. Many times have I watched from our hill these long, low, rapier shapes steal swiftly out to sea, and been struck with the terror, the genuine dread that lies in the word _destroyer_. For it is a terrible word, a word heavy with destruction and vengeance, a word that is akin to many an Old Testament phrase. Our great destroyer fleet may be divided into two squadrons, the first of larger boats called "thousand tonners," the second of smaller vessels known as "flivvers." Another division parts the thousand tonners into those which have a flush deck from bow to stern, and those which have a forward deck on a higher level than the main deck. All these types burn oil, the oil burner being nothing more than a kind of sprayer whose mist of fuel a forced draft whirls into a roar of flame; all can develop a speed of at least twenty-nine knots. The armament varies with the individual vessel, the usual outfit consisting of four four-inch guns, two sets of torpedo tubes, two mounted machine guns, and a store of depth charges.