The patients are ranged upon the lower decks, the portholes affording a sort of ventilation, such as it is--the breeze coming in from the putrid Thames' river, and in the cabin are all the implements of surgery, so that a leg or arm can be whipped off at a moment's notice, or an abscess, or ulcer, may be punctured equally quick. Visitors can inspect the "Dreadnought" on any day of the week, excepting Sunday--between the hours of eleven and three. The number of seamen cared for in this floating hospital, for the past thirty years, with their different places of nativity, is as follows: Englishmen, 84,600; Scotchmen, 18,960; Irishmen, 17,325; Frenchmen, 3,911; Germans, 2,800; Russians, 2,230; Prussians, 1,840; Hollanders, 480; Danes, 1,600; Swedes, 2,117; Norwegians, 1,604; Italians, 1,208; Portuguese, 706; Spaniards, 801; East Indians, 2,014; West Indians, 3,212; British Americans, 1,582; United States, 3,316; South Americans, 712; Africans, 1,200; Turks, 174; Greeks, 295; New Zealanders, 98; Australians, 307; South Sea Islanders, 80; Chinese, 347; born at sea, 206. Generally there are about two hundred patients in the floating Hospital at a time, and it is kept pretty full, from the fact that a poor sailor will perish afloat sooner than enter a land hospital, and seamen often travel from the most distant parts of England, Ireland, and Scotland, to be received in the Dreadnought. One day, while standing on Cheapside looking at the busy thoroughfare, which much resembles Broadway, New York, in its main features, I saw a queerly-shaped, but magnificent vehicle dash by, embellished in gold and silver, and hung with crimson velvet. I asked a bystander what it was, and he answered with proper British pride: "Why, don't you know? That's the Queen's State Kerridge a-goin to the Tower to be repaired." I afterward saw this vehicle in all its glory and detail, and for the benefit of Americans who may desire to get up a gorgeous equipage, I will do my best to describe it. The carriage is composed of four Sea Tritons, who support the body by cables; the two placed on the front, as it were, bear the driver, (a most magnificent flunkey in powder and velvet,) and are sounding shells, and those on the back part carry the bundles of Lictors rods which are seen on Roman monuments and medals. The foot board on which the driver rests his noble feet, is a large scallop shell, supported by marine plants of different kinds. The pole resembles a bundle of lances, and the wheels are made in imitation of the war chariots which once rolled around classic arenas in the Games. The body of the coach is composed of eight palm trees, which, branching out at the top, sustain the roof, and at each angle are trophies of English battles by land and sea.