DETAIL.--Beginning in the lower left-hand corner, we have the Royal Hospital, with its neatly-laid-out grounds. Close to it the Westbourne, whose irregular line determined the boundaries of Chelsea, falls into the Thames; higher up its course is through the Five Fields, now one of the most wealthy and popular districts of London--namely, Belgravia. St. George's Hospital is already standing at Hyde Park Corner, and a fringe of houses lines the road to Knightsbridge. Westminster is still largely open in the west by Tothill Fields, scene of so many tournaments and jousts, and the curve of the river encloses innumerable market-gardens. In St. James's Park the stiff canal, memento of Dutch influence, has not yet been transformed into the more attractive ornamental water. Carlton House Terrace has not come into existence. Here Carlton House, which does not appear to be marked, was standing, and was occupied by Frederick, Prince of Wales, father of George III. North of this, with the omission of Regent Street, made in 1813-20, the streets are pretty much as we know them. It is beyond Oxford Street northward that the difference is striking. This district was only just being built upon, and the well-laid-out streets soon run off into open country. "Marybone" Gardens, a favourite tea-garden, and the church, and a few houses, form a little hamlet just connected with the other part of London by a single street, and further westward, north of Berkeley Square, are fields. In the midst of these is the "Yorkshire Stingo," the public-house from which the first omnibus in the Metropolis began to run in 1829. The Tyburn Gallows still had much work to do; it was fifty years later that the last execution took place here. Just within the Hyde Park is the gruesome record, "where soldiers are shot." If we follow Oxford Street eastward to Tottenham Court Road, we find that it is only connected with High Holborn by the curve through High and Broad Streets at St. Giles's. To the south is the star of Seven Dials, and all the district so completely altered by the cutting through of Charing Cross Road, and then Shaftesbury Avenue in modern times. To the north, Montagu House occupies the site the British Museum was destined to fill; it was purchased by the Government in 1753, and pulled down about a hundred years later. Bedford House, the town residence of the Dukes of Bedford, stood until 1800. Behind, Lamb's Conduit Fields run up to Battle Bridge, where one of the early British battles was fought; this is now the site of King's Cross Station. Not far off Bagnigge Wells and Sadler's Wells are in the heyday of their prosperity. The Fleet or River of Wells may be traced passing through the former, but further south it is covered in, and does not appear in the open again until below Fleet Bridge, when it is ignominiously called Fleet Ditch.