We saw in our account of Turnerian topography, Chap. II., Sec. 14, that it had been necessary for the painter, in his modification of the view in the ravine of Faido, to introduce a passage from among the higher peaks; which, being thus intended expressly to convey the general impression of their character, must sufficiently illustrate what Turner felt that character to be. Observe: it could not be taken from the great central aiguilles, for none such exist at all near Faido; it could only be an expression of what Turner considered the noblest attributes of the hills next to these in elevation,--that is to say, those which we are now examining. I have etched the portion of the picture which includes this passage, on page 221, on its own scale, including the whole couloir above the gallery, and the gallery itself, with the rocks beside it.[77] And now, if the reader will look back to Plate +20+, which is the outline of the _real_ scene, he will have a perfect example, in comparing the two, of the operation of invention of the highest order on a given subject. I should recommend him to put a piece of tracing paper over the etching, Plate +37+, and with his pen to follow some of the lines of it as carefully as he can, until he feels their complexity, and the redundance of the imaginative power which amplified the simple theme, furnished by the natural scene, with such detail; and then let him observe what great mountain laws Turner has been striving to express in all these additions. Sec. 31. The cleavages which govern the whole are precisely the same as those of the Aiguille Bouchard, only wrought into grander combinations. That the reader may the better distinguish them, I give the leading lines coarsely for reference in Fig. 70, opposite. The cleavages and lines of force are the following. [Illustration: J. M. W. Turner. J. Ruskin. 37. Crests of the Slaty Crystallines.] [Illustration: FIG. 70.] 1. A B and associated lines _a b_, _a b_, &c., over the whole plate. True beds or cleavage beds (_g h_ in Aiguille Bouchard, Plate +34+); here, observe, closing in retiring perspective with exquisite subtlety, and giving the great unity of radiation to the whole mass. 2. D E and associated lines _d e_, _d e_, over all the plate. Cross cleavage, the second in Aiguille Bouchard; straight and sharp. Forming here the series of crests at B and D. 3. _r s_, _r s_. Counter-crests, closely corresponding to counter-fracture, the third in Aiguille Bouchard. 4. _m n_, _m n_, &c., over the whole. Writhing aqueous lines falling gradually into the cleavages. Fifth group in Aiguille Bouchard. The starchy cleavage is not seen here, it being not generally characteristic of the crests, and present in the Bouchard only accidentally.