The term sincerity indicates one’s conception that the artist has employed material which really is what it seems to be,-wood, if it seem wood; stone, if it seem stone; iron, if it seem iron. Sincerity even discards, at times, the use of paint, on the ground that it conceals the genuine sub-stance. So, too, owing in part also to the intrinsic beauty of the graining of almost any kind of wood, the same principle has led to a method of finishing this so as to reveal its natural character. It is useless to do more than point out that, as illustrated in all these cases, sincerity is merely one way of applying the broader general principle that architecture should represent nature. Painting, Sculpture, and Architecture as Representative Arts, XXI.