The doubts and misgivings which I entertain as to the site at Kensington for the comprehensive purposes to which it is proposed to be applied, are--Firstly, That it is far too much to the west for the general convenience of the Metropolis, particularly for the industrial community and the working-classes at the eastern and central portions of the town. Secondly, That to carry out efficiently the principle of concentration as regards both Art and Science, it would not be large enough to accommodate the National Library and the entire collection of arts and antiquities at the British Museum, which should, in my opinion, form a part of such an institution; neither is it probable that the Learned Societies, whose meetings are usually in the evening, would be induced to form part of the Institution in such a distant locality. Thirdly, That it would render several old established and popular National Institutions, which have been erected at considerable cost, more or less useless; such as the British Museum, the present National Gallery and Royal Academy, the Museum of Economic Geology, and the Society of Arts, &c. And, Lastly, The enormous and indefinite cost that it would be necessary to incur, and the great lapse of time and inconvenience resulting therefrom, that might, and probably would, ensue, before such a large and costly institution would be completed, so as to render its advantages and usefulness thoroughly available. From a rough calculation which I have formed of the buildings shown in Your Royal Highness’s plan for the National Gallery alone (which contains 1900 squares of buildings--_i. e._, is 30 per cent. larger than the entire British Museum), taking the Palace at Caserta, with which, in point of length and proposed design, it would so nearly assimilate, as a type of the style to be adopted--the cost would be little less than a million and a half of money; and to erect the other buildings, containing about 3995 squares, as shown in the same plan, within the main roads only, in a similar style, together with the enclosure, laying out of the ground, and formation of roads, &c., would probably cost an additional two millions and a half.