Cadiz stands, as is well known, upon a long narnow neck of land stretching out into the ocean, from whose bosom the town appears to rise, the salt waters laving its walls on all sides save the east, where a sandy isthmus connects it with the coast of Spain. The town, as it exists at the present day, is of modern construction, and very unlike any other town which is to be found in the Peninsula, being built with great regularity and symmetry. The streets are numerous, and intersect each other, for the most part, at right angles. They are very narrow in comparison to the height of the houses, so that they are almost impervious to the rays of the sun, except when at its midday altitude. The principal street, however, is an exception, it being of some width. This street, in which stands the Bolsa, or Exchange, and which contains the houses of the chief merchants and nobility, is the grand resort of loungers as well as men of business during the early part of the day, and in that respect resembles the Puerta del Sol at Madrid. It is connected with the great square, which, though not of very considerable extent, has many pretensions to magnificence, it being surrounded with large imposing houses, and planted with fine trees, with marble seats below them for the accommodation of the public.