62 THE SEVEN LAMPS OF ARCHITECTURE

belief of a correspondent internal structure; that is to say, of a fibrous and continuous strength from the root into the limbs, and an elasticity communicated upwards, sufficient for the support of the ramified portions. The idea of the real conditions, of a great weight of ceiling thrown upon certain narrow, jointed lines, which have a tendency partly to be crushed, and partly to separate and be pushed outwards, is with difficulty received; and the more so when the pillars would be, if unassisted, too slight for the weight, and are supported by external flying buttresses, as in the apse of Beauvais, and other such achievements of the bolder Gothic. Now, there is a nice question of conscience in this, which we shall hardly settle but by considering that, when the mind is informed beyond the possibility of mistake as to the true nature of things, the affecting it with a contrary impression, however distinct, is no dishonesty, but, on the contrary, a legitimate appeal to the imagination.¹ For instance, the greater part of the happiness which we have in contemplating clouds, results from the impression of their having massive, luminous, warm, and mountain-like surfaces; and our delight in the sky frequently depends upon our considering it as a blue vault. But, if we choose, we may know the contrary, in both instances; and easily ascertain² the cloud to be a damp fog, or a drift of snow-flakes; and the sky to be a lightless abyss. There is, therefore, no dishonesty, while there is much delight, in the irresistibly contrary impression. In the same way, so long as we see the stones and joints, and are not deceived as to the points of support in any piece of architecture, we may rather praise than regret the dexterous artifices which compel us to feel as if there were fibre in its shafts and life in its branches. Nor is even the concealment of the support of the external buttress reprehensible, so long as the pillars are not sensibly inadequate to their duty. For the weight of a roof is a

¹ [The MS. reads: “a very glorious act of, and legitimate appeal to, the imagination.”]

² [Ed. 1 reads: “But we know the contrary, in both instances; we know the cloud to be...”]

[Version 0.04: March 2008]