1 You will find more notice of this point in the account of Harding's tree-drawing, a little farther on.

2 The impressions vary so much in colour that no brown can be specified.You get the gradations of Turner's engraving. In this Exercise, as in the former one, a quarter of an inch worked to close resemblance of the copy is worth more than the whole subject carelessly done. Not that in drawing afterwards from nature, you are to be obliged to finish every gradation in this way, but that, once having fully accomplished the drawing something rightly, you will thenceforward feel and aim at a higher perfection than you could otherwise have conceived, and the brush will obey you, and bring out quickly and clearly the loveliest results, with a submissiveness which it would have wholly refused if you had not put it to severest work. Nothing is more strange in art than the way that chance and materials seem to favour you, when once you have thoroughly conquered them. Make yourself quite independent of chance, get your results in spite of it, and from that day forward all things will somehow fall as you would have them. Show the camel's-hair, and the colour in it, that no bending nor blotting are of any use to escape your will; that the touch and the shade shall finally be right, if it costs you a vear's toil; and from that hour of corrective conviction, said camel's-hair will bend itself to all your wishes, and no blot will dare to transgress its appointed border. If you cannot obtain a print from the Liber Studiorum, get a photograph1 of some general landscape subject, with high hills and a village, or picturesque town, in the middle distance, and some calm water of varied character (a stream with stones in it, if possible), and copy any part of it you like, in this same brown colour, working, as 1 have just directed you to do from the Liber, a great deal with the point of the brush. You are under a twofold disadvantage here, however; first, there are portions in every photograph too delicately done for you at present to be at all able to copy; and You had better get such a photograph, even though you have a Liber print as well.

Secondly, there are portions always more obscure or dark than there would be in the real scene, and involved in a mystery which you will not be able, as yet, to decipher. Both these characters will be advantageous to you for future study, after you have gained experience, but they are a little against you in early attempts at tinting; still you must fight through the difficulty, and get the power of producing delicate gradations with brown or grey, like those of the photograph.

Now observe; the perfection of work would be tinted shadow, like photography, without any obscurity or exaggerated darkness; and as long as your effect depends in anywise on visible lines, your art is not perfect, though it may be first-rate of its kind. But to get complete results in tints merely, requires both long time and consummate skill; and you will find that a few well-put pen lines, with a tint dashed over or under them, get more expression of facts than you could reach in any other way, by the same expenditure of time.

The use of the Liber Studiorum print to you is chiefly as an example of the simplest shorthand of this kind, a shorthand which is yet capable of dealing with the most subtle natural effects; for the firm etching gets at the expression of complicated details, as leaves, masonry, textures of ground, c, while the overlaid tint enables you to express the most tender distances of sky, and forms of playing light, mist, or cloud. Most of the best drawings by the old masters are executed on this principle, the touches of the pen. being useful also to give a look of transparency to shadows, which could not otherwise be obtained but by great finish of tinting; and if you have access to any ordinarily good public gallery, or can make friends of any printsellers who have folios either of old drawings, or facsimiles of them, you will not be at a loss to find some example of this unity of pen with tinting.

Multitudes of photographs also are now taken from the best drawing's by the old masters, and I hope that our Mechanics' Institutes, and other societies organized with a view to public instruction, will not fail to possess themselves of examples of these, and to make them accessible to students of drawing in the vicinity; a single print from Turner's Liber, to show the unison of tint with pen etching, and the St. Catherine, lately photographed by Thurston Thompson from Raphael's drawing in the Louvre, to show the unity of the soft tinting of the stump with chalk, would be all that is necessary, and would, I believe, be in many cases more serviceable than a larger collection, and certainly than a whole gallery of second-rate prints. Two such examples are peculiarly desirable, because all other modes of drawing, with pen separately, or chalk separately, or colour separately, may be seen by the poorest student in any cheap illustrated book, or in shop windows. But this unity of tinting with line he cannot generally see but by some special enquiry, and in some out of the way places he could not find a single example of it. Supposing that this should be so in your own case, and that you cannot meet with any example of this kind, try to make the matter out alone, thus: