"The general requirements are--simplicity of arrangement; economy of space; capability of extending or curtailing the building without destroying its symmetry as a whole, or interfering with the general arrangement, it being impossible to determine the exact extent of roof required until a late period of construction. Adaptation for the erection of separate portions of the building at different periods. Conveniences of ingress and egress, with facilities of access to all parts of the Exhibition, either from the exterior or interior. Means of classification of the various objects of different departments. Wall-space for the display of articles requiring it. Means of affording private access and accommodation for exhibitors, with counting-houses, if required. Committee-rooms, council-rooms, public refreshment-rooms, and all other public and private accommodation. (This portion of the building may be in two or more storeys if required.) Internal arrangements, by which, under proper regulations, large crowds of visitors may circulate freely, and have convenient access to all parts of the Exhibition, and uninterrupted means of examining the various objects exhibited." The Competition Designs. Though the time allowed for the preparation of drawings was but short, being only about one month, no less than 233 designs were sent in, many of them of an elaborate architectural character. Of these, thirty-eight, or one-sixth of the whole, were received from the different foreign countries of Europe (France, twenty-seven; Belgium, two; Holland, three; Hanover, one; Naples, one; Switzerland, two; Rhine Prussia, one; Hamburgh, one); 138, or more than half the entire number, from London and its vicinity, where the interest excited was naturally more immediate; fifty-one from the provincial towns of England; six from Scotland, and three from Ireland. Seven were sent anonymously. The small number contributed by the sister kingdoms seems rather remarkable. The greater part of these designs were, of course, contributed by members of the architectural and engineering professions, but some were the productions of amateurs, and one among them purported to be the suggestion of a lady. Here, then, was matter enough not only to assist, but even, from its great variety, to perplex the Committee, since at once every possible variety of style in decoration, material in construction, and system in arrangement, were strenuously recommended by the authors of the respective designs as the great ultimatum sought for.