colour like this: it is not in the bond. I find it in all natural form—never in natural colour. If, then, our architectural colour is to be beautiful as its form was, by being imitative, we are limited to these conditions—to simple masses of it, to zones, as in the rainbow and the zebra; cloudings and flamings, as in marble shells and plumage, or spots of various shapes and dimensions. All these conditions are susceptible of various degrees of sharpness and delicacy, and of complication in arrangement. The zone may become a delicate line, and arrange itself in chequers and zig-zags. The flaming may be more or less defined, as on a tulip leaf, and may at last be represented by a triangle of colour, and arrange itself in stars or other shapes; the spot may be also graduated into a stain, or defined into a square or circle. The most exquisite harmonies may be composed of these simple elements; some soft and full, of flushed and melting spaces of colour; others piquant and sparkling, or deep and rich, formed of close groups of the fiery fragments: perfect and lovely proportion may be exhibited in the relation of their quantities, infinite invention in their disposition: but, in all cases, their shape will be effective only as it determines their quantity, and regulates their operation on each other; points or edges of one being introduced between breadths of others, and so on. Triangular and barred forms are therefore convenient, or others the simplest possible; leaving the pleasure of the spectator to be taken in the colour, and in that only. Curved outlines, especially if refined, deaden the colour, and confuse the mind. Even in figure painting the greatest colourists have either melted their outline away, as often Correggio and Rubens; or purposely made their masses of ungainly shape, as Titian; or placed their brightest hues in costume, where they could get quaint patterns, as Veronese, and especially Angelico, with whom, however, the absolute virtue of colour is secondary to grace of line. Hence, he never