LONDON, the capital of the kingdom of England, taken in its largest extent, comprehends the cities of London and Westminster, with their respective suburbs, and the borough of Southwark, with the buildings contiguous thereto on the south side of the river, both on the east and west sides of the bridge. The length thereof, if we measure in a direct line from Hyde Park gate, on the west side of Grosvenor Square, to the farthest buildings that are contiguous in Limehouse, that is, from west to east, is very near five miles in a direct line; but if we take in the turnings and windings of the streets, it cannot be less than six miles. The breadth in many places from north to south is about two miles and a half, but in others not above a mile and a half; the circumference of the whole being about sixteen miles. The situation next the river is hilly, and in some places very steep; but the streets are for the most part upon a level, and the principal of them nowhere to be paralleled for their length, breadth, beauty, and regularity of the buildings, any more than the spacious and magnificent squares with which this city abounds. As to the dimensions of the city within the walls, I find that the late wall on the land side from the Tower in the east, to the mouth of Fleet Ditch in the west, was two miles wanting ten poles; and the line along the Thames, where there has been no walls for many hundred years, if ever, contains from the Tower in the east, to the mouth of the same ditch in the west, a mile and forty poles; which added to the circuit of the wall, on the land side, makes in the whole three miles thirty poles; and as it is of an irregular figure, narrow at each end, and the broadest part not half the length of it, the content of the ground within the walls, upon the most accurate survey, does not contain more than three hundred and eighty acres; which is not a third part of the contents of our extensive city of Lisbon: but then this must be remembered, Lisbon contains a great quantity of arable and waste ground within its walls, whereas London is one continued pile of buildings. The city gates are at this day eight, besides posterns, viz.: 1, Aldgate; 2, Bishopsgate; 3, Moorgate; 4, Cripplegate; 5, Aldersgate; 6, Newgate; 7, Ludgate; and, 8, The Bridgegate.