shade is given to an elevation which virtually lies in one plane. In this instance not only is a greater amount of ornament applied, but the parts are so disposed as in themselves to produce a more agreeable effect; and although the height of the floors remains the same, and the amount of light introduced very nearly so, still the slight grouping of the parts is such as to produce a better class of architecture than could be done by the mere application of any amount of ornament. The diagram deals with one phase of the subject, “a town house,” and with the elevation only, the style being that generally known as Italian; if it is admitted that the last division is an object of architecture, which the first is not, it follows from this analysis that architecture commences when some embellishment is added to the building which was not strictly a structural necessity. The value of the embellishment, from an architectural point of view, depends on—the extent to which, in its application, the structural features have been recognised,—the appropriateness of the ornament,—the careful study of proportion and balance of the several parts, and,—in a certain measure, the extent to which some known precedent has been followed. Recurring, for instance, to the Parthenon, to illustrate this principle farther. The proportions of length to breadth, and of height to both these, are instances of carefully-studied proportion and balance; and still more so is the arrangement of the porticoes and the disposition of the peristyle. If all the pillars were plain square piers, and all the mouldings square and flat, still the Parthenon could not fail, from the mere disposition of its parts, to be a pleasing and imposing building. So it is with a Gothic cathedral. The proportion of length to breadth, the projection of the transepts, the different height of the central and side aisles, the disposition and proportion of the towers, are all instances of proportion and balance, and beautiful even if without ornament. Many of the older abbeys, especially those of the Cistercians, are as devoid of ornament as a modern barn; but from the mere disposition of their parts they are always pleasing and, if large, are imposing objects of architecture. Stonehenge is an instance of ornamental construction wholly without ornament, yet it is almost as imposing an architectural object as any of the same dimensions in any part of the world. It is, however, when ornament is added to this, and when that ornament is elegant itself and appropriate to the construction and to the purposes of the building, that the temple or the cathedral ranks among the highest objects of the art and becomes one of the noblest works of man.