And that with a peculiar accuracy; for the mass which bears the light in this moulding is not in good Greek work, as in the frieze of the Erechtheum, merely of the shape of an egg. It is flattened on the upper surface, with a deUcacy and keen sense of variety in the curve which it is impossible too highly to praise, attaining exactly that flattened, imperfect oval, which in nine cases out of ten, will be the form of the pebble lifted at random from the rolled beach. Leave out this flatness and the moulding is vulgar instantly. It is singular also that the insertion of this rounded form in the hollowed recess has a painted type in the plumage of the Argus pheasant, the eyes of whose feathers are so shaded as exactly to represent an oval form placed in a hollow.
VI. It will evidently follow, upon our application of this test of natural resemblance, that we shall at once conclude that all perfectly beautiful forms must be composed of curves; since there is hardly any common natural form in which it is possible to discover a straight line. Nevertheless, Architecture, having necessarily to deal with straight lines essential to its purposes in many instances and to the expression of its power in others, must frequently be content with that measure of beauty which is consistent with such primal forms; and we may presume that utmost measure of beauty to have been attained when the arrangements of such lines are consistent with the most frequent natural groupings of them we can discover, although, to find right lines in nature at all, we may be compelled to do violence to her finished work, break through the sculptured and coloured surfaces of her crags, and examine the processes of their crystallization.
VII. I have just convicted the Greek fret of ugliness, because it has no precedent to allege for its arrangement except an artificial form of a rare metal. Let us bring into court an ornament of the Lombard
