Campagna, with fragments of aqueducts; beyond the Campagna the chain of the Alps; on the left, the cascades of Tivoli. This is, I believe, a fair example of what is commonly called an 'ideal' landscape; _i.e._ a group of the artist's studies from Nature, individually spoiled, selected with such opposition of character as may ensure their neutralising each other's effect, and united with sufficient unnaturalness and violence of association to ensure their producing a general sensation of the impossible. Let us analyse the separate subjects a little in this ideal work of Claude's. Perhaps there is no more impressive scene on earth than the solitary extent of the Campagna of Rome under evening light.... A dull purple poisonous haze stretches level along the desert, veiling its spectral wrecks of massy ruins, on whose rents the red light rests, like dying fire on defiled altars. The blue ridge of the Alban Mount lifts itself against a solemn space of green, clear, quiet sky. Watch-towers of dark clouds stand steadfastly along the promontories of the Apennines. From the plain to the mountains the shattered aqueducts, pier beyond pier, melt into darkness, like shadowy and countless troops of funeral mourners, passing from a nation's grave. Let us, with Claude, make a few 'ideal' alterations in this landscape. First, we will reduce the multitudinous precipices of the Apennines to four sugar loaves. Secondly, we will remove the Alban Mount, and put a large dust-heap in its stead. Next we will knock down the greater part of the aqueducts, and leave only an arch or two, that their infinity of length may no longer be painful from its monotony. For the purple mist and declining sun, we will substitute a bright blue sky, with round white clouds. Finally, we will get rid of the unpleasant ruins in the foreground; we will plant some handsome trees therein, we will send for some fiddlers, and get up a dance, and a picnic party. It will be found, throughout the picture, that the same species of improvement is made on the materials which Claude had ready to his hand. The descending slopes of the city of Rome, towards the pyramid of Caius Cestius, supply not only lines of the most exquisite variety and beauty, but matter for contemplation and reflection in every fragment of their buildings. This passage has been idealised by Claude into a set of similar round towers, respecting which no idea can be formed but that they are uninhabitable, and to which no interest can be attached beyond the difficulty of conjecturing what they could have been built for. The ruins of the temple are rendered unimpressive by the juxtaposition of the watermill, and inexplicable by the introduction of the Roman soldiers.