There seems to have been in the fourteenth century a kind of painting practised in England which much attracted the notice of foreigners. It was of water-colours on cloth--"on closely woven linen saturated with gum water. This, when dry, is stretched on the floor over coarse woollen frieze cloths; and the artists, walking over the linen with clean feet, proceed to design and colour historical figures and other subjects. And because the linen is laid quite flat on the woollen cloths, the water-colours do not flow and spread, but remain where they are placed, the moisture sinking through into the woollen cloths underneath, which absorb it. In like manner, the outlines of the brush remain defined, for the gum in the linen prevents the spreading of such lines. Yet, after this linen is painted, its thinness is no more obscured than if it was not painted at all, as the colours have no body." This does not at all resemble the kind of tempera painting in use in Flanders to imitate tapestry; for it is noticed as peculiar to England by a native of Flanders. May not this method be again, with some advantage, restored for the getting in the subjects of large pictures? The cloth so painted might easily be put on other cloth prepared with a ground. The subject of grounds is not omitted: it is one of importance; and the artist will do well to study Mr Eastlake's book, if he would have a ground that might suit his after-work. All grounds made with glues are bad--they not only crack, but change the colours. M. Merimée accurately examined the grounds of some of Titian's pictures--and found starch and paste. It is supposed that grounds in which red-lead and umber have been used darken all the pigments. The Venetians usually preferred painting on cloth, and not unfrequently chose the finest. There was a canvass used in Italy, and chiefly by the Bolognese school, which gives much richness, its peculiar texture being seen even through tolerably thick paint--the threads are in squares, and rather coarse. We are surprised that such is not to be met with in our shops. We have often endeavoured to obtain it without success. On canvass of this kind some painters, and among them Guercino, contrived greatly to raise the lights--so that as seen side-ways they appear to bulge. We are not aware how this was done.