aisles end among the battlements in a larger merlon. The west front is the most striking and original part of the whole church. Below, at the sides, a perfectly plain window lights the aisles, some feet above it runs a string course, on which stands a small two-light window for the gallery, flanked by larger blind arches, and then many feet of blank walling ending in battlements. Between these two aisle ends there projects about ten feet a large doorway or porch. This doorway is of considerable size; some of its eight shafts are curiously twisted and carved, its capitals are very refined and elaborate, and its arches well moulded with, as at Lisbon, small bosses in the hollows. The abacus is plain, and the broad pilasters which carry the outermost order are beautifully carved on the broader face with a small running pattern of leaves. The same 'black book' which tells of the bishop's gifts to the church, tells how a certain Master Robert came four times from Lisbon to perfect the work of the door, and how each time he received seven morabitinos, besides ten for his expenses, as well as bread, wine and meat for his four apprentices and food for his four asses. It is not often that the name of a man who worked on a mediæval church has been so preserved, and it is worth noticing that the west door at Lisbon has on it exactly the same ball ornament as that with which Master Robert and his four helpers enriched the archway here. Above the door runs an arched corbel table on which stands the one large window which the church possesses. This window,[44] which is much more like a door than a window, is deeply recessed within four orders of mouldings, resting on shafts and capitals, four on each side, all very like the door below. Above, the whole projection is carried up higher than the battlements in an oblong embattled belfry, having two arched openings in front and one at the side, added in 1837 to take the place of a detached belfry which once stood to the south of the church, and to hold some bells brought from Thomar after that rich convent had been suppressed. (Fig. 19.) Of the two other doorways, that at the end of the north transept, which has a simple archway on either side, and is surmounted by an arcade of five arches, has been altered in the early sixteenth century with good details of the first French renaissance, while the larger doorway in the third bay of the nave has at the same time been rebuilt as a beautiful three-storied porch, reaching right up to the battlements. To the south lie the cloisters, added about the end of the thirteenth century, but now very much mutilated. They are of the usual Portuguese type of vaulted cloister, a large arch, here pointed, enclosing two round arches below with a circular opening above.