The Ouse, the next, going westward, to cut through the Downs, is a very much larger stream. It breaks through the here narrow but lofty chalk range some five miles from the sea at Lewes, and then winds through the meadows as a tidal river to Newhaven--a stretch of country familiar enough to every one using this route to the Continent. The cleft in the Downs made by the Ouse below the ancient and picturesque town of Lewes is one of the boldest and most precipitous scenes of its kind in the whole chalk system. Looking down from the top of the prodigiously steep streets of Lewes, or from the summit of the castle, the opposite Down rises like an inaccessible green wall for five or six hundred feet, and one might fancy there was scarcely room for the slow running river to push its way through what one is almost tempted to call the defile below. The Ouse rises in many feeders about the edges of Ashdown forest but is quite insignificant till, after the manner of Sussex rivers, it makes this fine effort at Lewes. Hence strong tides rush up and down the seven miles or so of channel which winds through the banked-in meadows to Newhaven. The Adur, which joins the sea at Shoreham, between Brighton and Worthing, follows the same tactics, and is a still more insignificant stream up the country, but winds for some way through the chalk range, from Bramber, where it has some claim to be a river to the two Shorehams, the old and the new. But the Arun, the most westerly of all the Sussex [Illustration: THE OUSE, NEAR LEWES, SUSSEX] [Illustration]