another, and church spires rising bravely from the sea of roofs. At one of the innumerable windows, you watch a figure moving; on one of the multitude of roofs, you watch clambering chimney-sweeps. The wind takes a run and scatters the smoke; bells are heard, far and near, faint and loud, to tell the hour; or perhaps a bird goes dipping evenly over the house-tops, like a gull across the waves. And here you are in the meantime, on this pastoral hill-side, among nibbling sheep and looked upon by monumental buildings.
Return thither on some clear, dark, moonless night, with a ring of frost in the air, and only a star or two set sparsely in the vault of heaven; and you will find a sight as stimulating as the hoariest summit of the Alps. The solitude seems perfect; the patient astronomer, flat on his back under the Observatory dome and spying heaven's secrets, is your only neighbour; and yet from all around you there come up the dull hum of the city, the tramp of
