there are few buildings which require them to be singular, and none which can tolerate them if decorated; and that the architect should always remember that the size and height being by necessity fixed, the form which draws least attention is the best.
2dly. That this inconspicuousness is to be obtained, not by adhering to any model of simplicity, but by taking especial care that the lines of the chimneys are no interruption, and its colour no contrast, to those of the building to which it belongs. Thus, Figs. 14 to 18 would be far more actually remarkable, in their natural situation, if they were more simple in their form; for they would interrupt the character of the rich architecture by which they are surrounded. Fig. 10, rising as it does above an old Gothic window, would have attracted instant attention, had it not been for the occurrence of the same lines in it which prevail beneath it. The form of Fig. 19 only assimilates it more closely with the roof on which it stands. But we must not imitate chimneys of this kind, for their excellence consists only in their agreement with other details, separated from which they would be objectionable; we can only follow the principle of the design, which appears, from all that we have advanced, to be this: we require, in a good chimney, the character of the building to which it belongs divested of all its elevation, and its prevailing lines deprived of all their ornament'.
This it is, no doubt, excessively difficult to give; and, in consequence, there are very few cities or edifices in
