So much has already been said and written, both wisely and well, upon the marvellous edifice which has just been reared with such magical rapidity to enshrine the results of the skill and industry of all nations, that it would appear an almost hopeless task to present the subject in any new point of view to the reader. If, therefore, the authors cannot lay claim to novelty or originality in the execution of the pleasurable work which they have undertaken, they are not without hopes that, from their having been connected with this gigantic undertaking during the greater part of its progress, they will be enabled to trace in a more detailed and consecutive manner than has yet been attempted the history of the design and execution of the building up to the period of its completion. A great deal has been lately said upon the want of distinctive character in almost all the buildings of the present day; and it is certainly a striking fact that in scarcely any of our important modern structures does the exterior appearance in any way lead the spectator to form an idea of the purposes or arrangement of the interior, the former being apparently governed by fancy, or the fashion for some particular style, while the latter only, is accommodated to the peculiar requirements of the case. Thus we have porticos which do not shelter from the weather, or in which no one is allowed to walk; Venetian palaces appear piled upon a substructure of plate-glass; baronial castles prove to be model prisons; and richly-decorated mansions, from the time of "Good Queen Bess," or fanciful Italian villas, are made to serve for the accommodation of paupers. The ancients appear to have been more careful in this respect, so that the form and external arrangement afforded in most cases a ready key to the purposes of their structures. Their temples, their fora, theatres and amphitheatres, baths, and other public edifices, seem each to have been stamped with their own characteristic features, at the same time without in any way producing a monotonous uniformity among the different examples of the same class of building. Now, if this criterion of excellence be applied to the remarkable building recently erected in Hyde Park, it will be found that the constructive arrangement of the interior is plainly expressed without, and it must be conceded that it possesses at least those elements of beauty arising from consistency and simplicity which, in combination with its vast size, give it also that of grandeur. That it is faultless it would be needless to assert, or to imagine that, from its example, a new style of architecture will originate; but that it is admirably suited to its purpose, that it is a remarkable specimen of the constructive skill of this country, and that it will certainly form one of the most interesting objects of the Great Exhibition by which it has been called into being, if not the most interesting of all, must, we think, be admitted by all candid observers.