Lectures on Architecture and Painting, Delivered at Edinburgh in November 1853. Ruskin JohnЧитать онлайн книгу.
but see in a moment that this cross bar is weak and imperfect. It may be strong enough for all immediate intents and purposes, but it is not so strong as it might be: however well the house is built, it will still not stand so long as if it had been better constructed; and there is hardly a day passes but you may see some rent or flaw in bad buildings of this kind. You may see one whenever you choose, in one of your most costly, and most ugly buildings, the great church with the dome, at the end of George Street. I think I never saw a building with a principal entrance so utterly ghastly and oppressive; and it is as weak as it is ghastly. The huge horizontal lintel above the door is already split right through. But you are not aware of a thousandth part of the evil: the pieces of building that you see are all carefully done; it is in the parts that are to be concealed by paint and plaster that the bad building of the day is thoroughly committed. The main mischief lies in the strange devices that are used to support the long horizontal cross beams of our larger apartments and shops, and the framework of unseen walls; girders and ties of cast iron, and props and wedges, and laths nailed and bolted together, on marvelously scientific principles; so scientific, that every now and then, when some tender reparation is undertaken by the unconscious householder, the whole house crashes into a heap of ruin, so total, that the jury which sits on the bodies of the inhabitants cannot tell what has been the matter with it, and returns a dim verdict of accidental death.
7. Did you read the account of the proceedings at the Crystal Palace at Sydenham the other day? Some dozen of men crushed up among the splinters of the scaffolding in an instant, nobody knew why. All the engineers declare the scaffolding to have been erected on the best principles,—that the fall of it is as much a mystery as if it had fallen from heaven, and were all meteoric stones. The jury go to Sydenham and look at the heap of shattered bolts and girders, and come back as wise as they went. Accidental death! Yes, verily; the lives of all those dozen of men had been hanging for months at the mercy of a flaw in an inch or two of cast iron. Very accidental indeed! Not the less pitiable. I grant it not to be an easy thing to raise scaffolding to the height of the Crystal Palace without incurring some danger, but that is no reason why your houses should all be nothing but scaffolding. The common system of support of walls over shops is now nothing but permanent scaffolding; part of iron, part of wood, part of brick; in its skeleton state awful to behold; the weight of three or four stories of wall resting sometimes on two or three pillars of the size of gas pipes, sometimes on a single cross beam of wood, laid across from party wall to party wall in the Greek manner. I have a vivid recollection at this moment of a vast heap of splinters in the Borough Road, close to St. George's, Southwark, in the road between my own house and London. I had passed it the day before, a goodly shop front, and sufficient house above, with a few repairs undertaken in the shop before opening a new business. The master and mistress had found it dusty that afternoon, and went out to tea. When they came back in the evening, they found their whole house in the form of a heap of bricks blocking the roadway, with a party of men digging out their cook. But I do not insist on casualties like these, disgraceful to us as they are, for it is, of course, perfectly possible to build a perfectly secure house or a secure window in the Greek manner; but the simple fact is, that in order to obtain in the cross lintel the same amount of strength which you can obtain in a pointed arch, you must go to an immensely greater cost in stone or in labor. Stonehenge is strong enough, but it takes some trouble to build in the manner of Stonehenge: and Stonehenge itself is not so strong as an arch of the Colosseum. You could not raise a circle of four Stonehenges, one over the other, with safety; and as it is, more of the cross-stones are fallen upon the plain of Sarum than arches rent away, except by the hand of man, from the mighty circle of Rome. But I waste words;—your own common sense must show you in a moment that this is a weak form; and there is not at this instant a single street in London where some house could not be pointed out with a flaw running through its brickwork, and repairs rendered necessary in consequence, merely owing to the adoption of this bad form; and that our builders know so well, that in myriads of instances you find them actually throwing concealed arches above the horizontal lintels to take the weight off them; and the gabled decoration, at the top of some Palladian windows, is merely the ornamental form resulting from a bold device of the old Roman builders to effect the same purpose.
8. But there is a farther reason for our adopting the pointed arch than its being the strongest form; it is also the most beautiful form in which a window or door-head can be built. Not the most beautiful because it is the strongest; but most beautiful, because its form is one of those which, as we know by its frequent occurrence in the work of Nature around us, has been appointed by the Deity to be an everlasting source of pleasure to the human mind.
Fig. 4.
Fig. 6.
Plate III.
Gather a branch from any of the trees or flowers to which the earth owes its principal beauty. You will find that every one of its leaves is terminated, more or less, in the form of the pointed arch; and to that form owes its grace and character. I will take, for instance, a spray of the tree which so gracefully adorns your Scottish glens and crags—there is no lovelier in the world—the common ash. Here is a sketch of the clusters of leaves which form the extremity of one of its young shoots (fig. 4); and, by the way, it will furnish us with an interesting illustration of another error in modern architectural systems. You know how fond modern architects, like foolish modern politicians, are of their equalities, and similarities; how necessary they think it that each part of a building should be like every other part. Now Nature abhors equality, and similitude, just as much as foolish men love them. You will find that the ends of the shoots of the ash are composed of four4 green stalks bearing leaves, springing in the form of a cross, if seen from above, as in fig. 5, Plate I., and at first you will suppose the four arms of the cross are equal. But look more closely, and you will find that two opposite arms or stalks have only five leaves each, and the other two have seven; or else, two have seven, and the other two nine; but always one pair of stalks has two leaves more than the other pair. Sometimes the tree gets a little puzzled, and forgets which is to be the longest stalk, and begins with a stem for seven leaves where it should have nine, and then recollects itself at the last minute, and puts on another leaf in a great hurry, and so produces a stalk with eight leaves; but all this care it takes merely to keep itself out of equalities; and all its grace and power of pleasing are owing to its doing so, together with the lovely curves in which its stalks, thus arranged, spring from the main bough. Fig. 5 is a plan of their arrangement merely, but fig. 4 is the way in which you are most likely to see them: and observe, they spring from the stalk precisely as a Gothic vaulted roof springs, each stalk representing a rib of the roof, and the leaves its crossing stones; and the beauty of each of those leaves is altogether owing to its terminating in the Gothic form, the pointed arch. Now do you think you would have liked your ash trees as well, if Nature had taught them Greek, and shown them how to grow according to the received Attic architectural rules of right? I will try you. Here is a cluster of ash leaves, which I have grown expressly for you on Greek principles (fig. 6, Plate III.) How do you like it?
9. Observe, I have played you no trick in this comparison. It is perfectly fair in all respects. I have merely substituted for the beautiful spring of the Gothic vaulting in the ash bough, a cross lintel; and then, in order to raise the leaves to the same height, I introduce vertical columns; and I make the leaves square-headed instead of pointed, and their lateral ribs at right angles with the central rib, instead of sloping from it. I have, indeed, only given you two boughs instead of four; because the perspective of the crossing ones could not have been given without confusing the figure; but I imagine you have quite enough of them as it is.
"Nay, but," some of you instantly answer, "if we had been as long accustomed to square-leaved ash trees as we have been to sharp-leaved ash trees, we should like them just as well." Do not think it. Are you not much more