Simple as is the exterior of this keep, its interior is full of interest and beauty. The walls, as high as the first floor, are 20 feet in thickness. The basement contains the storage and has a well in the centre, over which an eye in the vaults above allows water to be raised to every floor. The entrance door is on the first floor on the side next the town, and there is also a postern on this floor on the side next the country. From the landing at the former, a staircase leads to the second floor, and is so contrived that the lower part is completely overlooked and commanded from the upper part. At the landing where the staircase gives access to the great apartment on the upper floor, a beautifully arched and groined lobby is constructed, and is decorated with Gothic shafts and enriched caps. The great hall on the first floor is vaulted in one span, with large pointed ribs springing from finely-carved caps. On the level of the floor there are recesses in the thick walls, giving access to long loops which descend far below the floor, so as to enable the defenders to shoot down as close as possible to the base of the tower. The postern is also seen from the inside (although now built up externally), with its portcullis (or rather a modern imitation) _in situ_. The interior is lit only by the narrow loop-holes, and is, therefore, very dark. A gallery runs round in the thickness of the upper part of the walls of the hall, with windows looking into the apartment from which it might be watched and commanded. Between the recess of one of the loops and the postern a fireplace is introduced, with an oven in the wall behind it. The hearth is covered with a boldly projecting hood, supported on two brackets carved with foliage. The angles of the hood have ornamental crockets, and the hood itself is carved in imitation of tiles. The whole work is massive and yet fine, and specially recalls, both in construction and ornament, the style of Couci. It has evidently been the work of a Northern architect brought with him by King Louis. About two miles to the north of Aigues Mortes stands the “Tour Carbonnière,” which formed an outpost of the town. It was erected at the same time as the fortifications, and was placed so as to command the approach, which was only practicable by one course through the marshes and canals. It is a good example of a detached thirteenth century tower, and in style strongly resembles that of Villeneuve, at the west end of the bridge of St Bénezet, at Avignon. * * * * * We shall now return to Marseilles, and strike eastwards by the Mediterranean Railway, along the Riviera.