41. Now I want you especially to notice, with respect to these things, Turner's introduction of the ugly square tower high up on the left. Your first instinct would be to exclaim, "How unlucky that was there at all! Why, at least, could not Turner have kept it out of sight?" He has quite gratuitously brought it into sight; gratuitously drawn firmly the three lines of stiff drip-stone which mark its squareness and blankness. It is precisely that blank vacancy of decoration, and setting of the meager angles against wind and war, which he wants to force on your notice, that he may take you thoroughly out of Italy and Greece, and put you wholly into a barbarous and frost-hardened land; that once having its gloom defined he may show you all the more intensely what pastoral purity and innocence of life, and loveliness of nature, are underneath the banks and braes of Doune, and by every brooklet that feeds the Forth and Clyde. That is the main purpose of these two studies. How it is obtained by various incidents in the drawing of stones, and trees, and figures, I will show you another time. The chief element in both is the sadness and depth of their effect of subdued though clear light in sky and stream. 42. The sadness of their effect, I repeat. If you remember anything of the Lectures I gave you through last year, you must be gradually getting accustomed to my definition of the Greek school in art, as one essentially Chiaroscurist, as opposed to Gothic color; Realist, as opposed to Gothic imagination; and Despairing, as opposed to Gothic hope. And you are prepared to recognize it by any one of these three conditions. Only, observe, the chiaroscuro is simply the technical result of the two others: a Greek painter likes light and shade, first, because they enable him to realize form solidly, while color is flat; and secondly, because light and shade are melancholy, while color is gay. So that the defect of color, and substitution of more or less gray or gloomy effects of rounded gradation, constantly express the two characters: first, Academic or Greek fleshliness and solidity as opposed to Gothic imagination; and secondly, of Greek tragic horror and gloom as opposed to Gothic gladness. 43. In the great French room in the Louvre, if you at all remember the general character of the historical pictures, you will instantly recognize, in thinking generally of them, the rounded fleshly and solid character in the drawing, the gray or greenish and brownish color, or defect of color, lurid and moonlight-like, and the gloomy choice of subjects, as the Deluge, the Field of Eylau, the Starvation on the Raft, and the Death of Endymion; always melancholy, and usually horrible. The more recent pictures of the painter Gerome unite all these attributes in a singular degree; above all, the fleshliness and materialism which make his studies of the nude, in my judgment, altogether inadmissible into the rank of the fine arts.