The basis of music is the qualities of the air and the vibrations of sonorous bodies. The pulsation of a stretched string or wire gives the ear the pleasure of sweet sound, before yet the musician has enhanced this pleasure by concords and combinations. Eloquence, as far as it is a fine art, is modified how much by the material organization of the orator, the tone of the voice, the physical strength, the play of the eye and countenance. All this is so much deduction from the purely spiritual pleasure,--as so much deduction from the merit of Art,--and is the attribute of Nature. In painting, bright colors stimulate the eye, before yet they are harmonized into a landscape. In sculpture and in architecture the material, as marble or granite, and in architecture the mass, are sources of great pleasure, quite independent of the artificial arrangement. The art resides in the model, in the plan; for it is on that the genius of the artist is expended, not on the statue or the temple. Just as much better as is the polished statue of dazzling marble than the clay model, or as much more impressive as is the granite cathedral or pyramid than the ground-plan or profile of them on paper, so much more beauty owe they to Nature than to Art. There is a still larger deduction to be made from the genius of the artist in favor of Nature than I have yet specified. A jumble of musical sounds on a viol or a flute, in which the rhythm of the tune is played without one of the notes being right, gives pleasure to the unskilful ear. A very coarse imitation of the human form on canvas, or in wax-work,--a coarse sketch in colors of a landscape, in which imitation is all that is attempted,--these things give to unpractised eyes, to the uncultured, who do not ask a fine spiritual delight, almost as much pleasure as a statue of Canova or a picture of Titian. And in the statue of Canova, or the picture of Titian, these give the great part of the pleasure; they are the basis on which the fine spirit rears a higher delight, but to which these are indispensable. Another deduction from the genius of the artist is what is conventional in his art, of which there is much in every work of art. Thus how much is there that is not original in every particular building, in every statue, in every tune, painting, poem, or harangue!--whatever is national or usual; as the usage of building all Roman churches in the form of a cross, the prescribed distribution of parts of a theatre, the custom of draping a statue in classical costume. Yet who will deny that the merely conventional part of the performance contributes much to its effect?