This is by no means an isolated instance. In various places, as emblems of various guilds or confraternities, one meets similarly carved, on lintel or escutcheon, sheaves of lilies, or what is pleasanter still, that favourite device of the Renaissance (become well known as the monogram of the painter Benvenuto Garofalo), a jar with five clove-pinks. And on each occasion of meeting them, that carved lily and those graven clove-pinks, like the three roses in the Square of Purgatory, have shed a charm over the street, given me a pleasure more subtle than that derived from any bed of real lilies, or pot of real clove-pinks, or bush of real roses; colouring and scenting the street with this imaginary colour and perfume. What train of thought has been set up? It would be hard to say. Something too vague to be perceived except as a whole impression of pleasure; a half-seen vision, doubtless, of the real flowers, of the places where they grow; perhaps even a faint reminiscence, a dust of broken and pounded fragments, of stories and songs into which roses enter, or lilies, or clove-pinks. Hereby hangs a whole question of æsthetics. Those three stone roses are the type of one sort of imaginative art; of one sort of art which, beyond or independent of the charm of visible beauty, possesses a charm that acts directly upon the imagination. Such charm, or at least such interest, may be defined as the literary element in art; and I should give it that name, did it not suggest a dependence upon the written word which I by no means intend to imply. It is the element which, unlike actual representation, is possessed by literature as well as by art; indeed, it is the essence of the former, as actual representation is of the latter. But it belongs to art, in the cases when it belongs to it at all, not because the artist is in any way influenced by the writer, but merely because the forms represented by the artist are most often the forms of really existing things, and fraught, therefore, with associations to all such as know them; and because, also, the artist who presents these forms is a human being, and as such not only sees and draws, but feels and thinks; because, in short, literature being merely the expression of habits of thought and emotion, all such art as deals with the images of real objects tends more or less, in so far as it is a human being, to conform to its type.