242. And such definition has in these days become more needful than ever before, in this solid, or spectral--which-ever the reader pleases to consider it--world of ours. For some of us, who have no perception but of solidity, are agreed to consider all that is not solid, or weighably liquid, nothing. And others of us, who have also perception of the spectral, are sometimes too much inclined to call what is no more than solid, or weighably liquid, nothing. But the general reader may be at least assured that it is not at all possible for the student to enter into useful discussion concerning the qualities of art which takes on itself to represent things as they are, unless he include in its subjects the spectral, no less than the substantial, reality; and understand what difference must be between the powers of veritable representation, for the men whose models are of ponderable flesh, as for instance, the "Sculptor's model," lately under debate in Liverpool,--and the men whose models pause perhaps only for an instant--painted on the immeasurable air,--forms which they themselves can but discern darkly, and remember uncertainly, saying: "A vision passed before me, but I could not discern the form thereof." 243. And the most curious, yet the most common, deficiency in the modern contemplative mind, is its inability to comprehend that these phenomena of true imagination are yet no less real, and often more vivid than phenomena of matter. We continually hear artists blamed or praised for having painted this or that (either of material or spectral kind), without the slightest implied inquiry whether they _saw_ this, or that. Whereas the quite primal difference between the first and second order of artists, is that the first is indeed painting what he has seen; and the second only what he would like to see! But as the one that can paint what he would like, has therefore the power, if he chooses, of painting more or less what also his public likes, he has a chance of being received with sympathetic applause, on all hands, while the first, it may be, meets only reproach for not having painted something more agreeable. Thus Mr. Millais, going out at Tunbridge or Sevenoaks, sees a blind vagrant led by an ugly child; and paints that highly objectionable group, as they appeared to him. But your pliably minded painter gives you a beautiful young lady guiding a sightless Belisarius (see the gift by one of our most tasteful modistes to our National Gallery), and the gratified public never troubles itself to ask whether these ethereal mendicants were ever indeed apparent in this world, or any other. Much more, if, in deeper vistas of his imagination, some presently graphic Zechariah paint--(let us say) four carpenters, the public will most likely declare that he ought to have painted persons in a higher class of life, without ever inquiring whether the Lord had shown him four carpenters or not. And the worst of the business is that the public