The abbey gradually fell into decay through neglect. The materials were used for the erection of other structures, and Douglas built from the ruins a house which still stands to the north of the cloisters and bears the date 1590. The masonry also formed a quarry for the neighbourhood, and in 1618 the remaining portion of the structure was fitted up as the parish church, "and in order to render it secure, a plain pointed barrel vault was thrown across the nave, and was supported by plain square piers built against the old piers on the north side. The original vaulting seems to have been previously demolished."[452] A great number of the stone images of saints which filled the numerous wall niches were left untouched till 1649, when they were almost all cast down and destroyed, but by whose order is unknown. Of the abbey there now only remain the ruins of the church, and of it the most competent authorities say:-- "No building in Scotland affords such an extensive and almost inexhaustible field for minute investigation and enjoyment of detail such as this. Whether we consider the great variety of the beautifully sculptured figures of monks and angels playing on musical instruments, or displaying 'the scrolls which teach us to live and die,' or turn to the elaborate canopies and beautiful pinnacles of the buttresses, or examine the rich variety of foliage and other sculptures on the capitals of the nave and the doorway and arches of the cloisters; or if, again, we take a more general view of the different parts of the edifice from the numerous fine standpoints from which it can be so advantageously contemplated, we know of no Scottish building which surpasses Melrose either in the picturesqueness of its general aspect or in the profusion or value of its details. It occupies an important position also historically, and it in part supplies an admirable example of that decorated architecture, the existence of which in this country has been so often denied, but of which, we trust, a sufficient number of examples are now provided to render that reproach to Scottish architecture no longer justifiable. We have to thank the fine red sandstone of the district, of which the church is built, for the perfect preservation of all the details of the structure. These remain, even in the minutest carving, as perfect and complete as the day they were executed."[453]