Rome itself must have been a city of plastered walls; the Pantheon, the great Basilica of Constantine in the Forum, and the splendid Baths were all, as may be seen to-day, plastered. The tile walls of the Basilica at Trèves were covered with red plastering. The Baths at Silchester were plastered externally. Of the great villa at Woodchester we are told the walls were “plastered on the outside and painted a dull red colour” (T. Wright). At Caerwent the Basilica was plastered a reddish-brown colour. The best description I have found of such plastering is that in _Archæologia_ of a round temple or tomb building found at Holmwood Hill, which was covered outside with “a mixture of lime and gravel and coarse fragments of broken tile. On this was laid a coat of stucco composed of lime and tile more minutely broken, the latter being rendered very smooth was covered with a dark pigment ... a sort of ochre.” It is clear that external plastering was generally finished with a red surface. Of internal plastering we have many fragments covered with painted decoration in the museums; it was generally very thick and smoothly finished on the surface; against the floor there was usually a projecting quarter-round fillet about 3 in. high, of hard cement. Such a skirting was found around the Bucklersbury mosaic pavement (Price). Sometimes a similar fillet ran up the angles of a room, as at a bath at Hartlip Villa, illustrated by T. Wright. I have seen a similar treatment in Rome, also a hollow curve. _Roofs, Windows, etc._—Roofs were generally covered with tiles, stone-slates, and doubtless thatch. Examples of the two former are in our museums. The flat tiles had turned-up edges; these were removed near the top for the next tile to lap over. The flanges were covered by half-round tiles, larger below than above, so that one lapped over the other. The flat tiles were frequently if not always of a key-stone shape, so that the bottom of the upper one set into the wider top of the lower one. (See one figured in Allen’s _London_.) Some have a single nail-hole near the top; but others, I suppose, can only have been nailed against the slanting sides. (See V. le Duc’s article “Tuille” for the Romanesque system.) In better work ante-fix tiles covered the terminations of the round tiles at the eaves. “Part of an ante-fix of red terra-cotta in the form of a lion’s mask” was found in the Strand (_V.C.H._). There are several in Reading Museum and one in the British Museum from Chester. The slates were thick and of a pointed shape below, forming diagonal lines when laid. Both the stones and tiles were very heavy, and must have required strong roof timbering. [Illustration: FIG. 15. ] [Illustration: FIG. 16. ]