In the chapter "on the relative importance of truths," there is a little needless display of logic--needless, for we find, after all, he does not dispute "the kind of truths proper to be represented by the painter or sculptor," though he combats the maxim that general truths are preferable to particular. His examples are quite out of art, whether one be spoken of as a man or as Sir Isaac Newton. Even logically speaking, Sir Isaac Newton may be the _whole_ of the subject, and as such a whole might require a generality. There may be many particulars that are best sunk. So, in a picture made up of many parts, it should have a generality totally independent of the particularities of the parts, which must be so represented as not to interfere with that general idea, and which may be altogether in the mind of the artist. This little discussion seems to arise from a sort of quibble on the word important. Sir Joshua and others, who abet the generality maxim, mean no more than that it is of importance to a picture that it contain, fully expressed, one general idea, with which no parts are to interfere, but that the parts will interfere if each part be represented with its most particular truth--and that, therefore, drapery should be drapery merely, not silk or satin, where high truths of the subject are to be impressed. "Colour is a secondary truth, therefore less important than form." "He, therefore, who has neglected a truth of form for a truth of colour, has neglected a greater truth for a less one." It is true with regard to any individual object--but we doubt if it be always so in picture. The character of the picture may not at all depend upon form--nay, it is possible that the painter may wish to draw away the mind altogether from the beauty, and even correctness of form, his subject being effect and colour, that shall be predominant, and to which form shall be quite subservient, and little more of it than such as chiaro-scuro shall give; and in such a case colour is the more important truth, because in it lies the sentiment of the picture. The mystery of Rembrandt would vanish were beauty of form introduced in many of his pictures. We remember a picture, the most impressive picture perhaps ever painted, and that by a modern too, Danby's "Opening of the Sixth Seal." Now, though there are fine parts in this picture, the real power of the picture is in its colour--it is awful. We are no enemy to modern painters; we think this a work of the highest genius--and as such, should be most proud to see it deposited in our National Gallery. We further say, that in some respects it carries the art beyond the old practice. But, then, we may say it is a new subject. "It is not certain whether any two people see the same colours in things." Though that does not affect the question of the importance of colour, for it must imply a defect in the individuals, for undoubtedly there is such a thing as nature's