North of the valley of the Aire is the valley of the Wharfe River, and, following that pleasant stream a short distance up, we come to Rumbald's Moor and the water-cure establishments of the town of Ilkley, which is an array of villas and terraces spreading up the hillside from the southern bank of the river. The neighborhood is full of attractive rock-and river-scenery. In the suburbs is the palace of Ben Rhydding, built in the Scottish baronial style, with the Cow and Calf Rocks overhanging the adjacent park. The Panorama Rock also commands a wide prospect, while Rumbald's Moor itself is elevated over thirteen hundred feet. A few miles from Ilkley are the celebrated ruins of Bolton Abbey, standing on a patch of open ground, around which the Wharfe curves, but with much woods clustering near the ruins and on the river-bank. Bolton stands in a deep valley, and on the opposite side of the river rises the steep rock of Simon's Seat, sixteen hundred feet high. The architecture of the abbey is of various styles, the west front coming down to us from the reign of Henry VIII., while its gateway is much older. There is no south aisle to the abbey, and at present the nave and north aisle are roofed in and serve as the parish church. The east end of this aisle is divided from the rest by an ancient wooden screen so as to form a chapel, and beneath this is the vault where the former owners of Bolton--the Claphams and Mauleverers--were buried. Some years ago, when the floor was being repaired, their coffins were found standing upright, whereof the poet tells us: "Through the chinks in the fractured floor Look down and see a grisly sight-- A vault where the bodies are buried upright There, face by face and hand by hand. The Claphams and Mauleverers stand." The ruins of the north transept are in fair preservation, and the choir has a beautiful arcade, while through the openings beneath there is a charming view of the green-bordered river and of the hills beyond. Bolton Hall, which was the ancient gateway of the abbey, is opposite its western front, and is one of the favorite homes in the shooting season of the Duke of Devonshire, its owner. [Illustration: THE STRID.]