In those early ages, illuminating was applied only to religious and devotional MSS.; and it was chiefly done by members of the religious orders, for a very good reason--that they appear to have been almost the sole depositories of what learning and fine arts then existed. The celebrated St. Dunstan is said to have been a skilful illuminator, and is represented, in one of the pictures of an old manuscript, as busily at work decorating a missal. The earlier specimens of illuminating which have descended to us are mostly crude and simple, consisting chiefly of colored capitals, stained ground, and metallic letters. For several ages the art does not appear to have made much progress, except that the capital letters increase in size, in ornament and beauty; and about the twelfth century we find them assuming a gigantic height, abounding in florid development, gorgeous in hues, and often exquisite in execution. In the early part of the fourteenth century an alteration is perceptible--the MS. pages assume an illuminated border, which at first only passes down one side, but gradually extends along the top and the bottom of the page; and, after a lapse of years, constitutes a complete frame to the text. These borders at first consist simply of foliage or scrolls; but, as the art improves, and doubtless is more fostered and patronized, arabesques are introduced, in which forms of marvellous grace and beauty, linked in inextricable twinings, shine forth in all the gorgeous hues of a brilliant sunset; and these are, at a later period, gemmed with medallions or miniature paintings, illustrative of portfolios of the text. Indeed, several of the most celebrated painters of those days did not disdain to enrich MSS. for some high personage with specimens of their artistic skill. This continued until the middle of the sixteenth century. Subsequently, a progressive decline in the excellence and artistic beauty of illuminated painting becomes very evident. It is true that, in the middle of the seventeenth century, it was florid, gorgeous, and, to a certain degree, admirable, but it was not the beauty of art; the rococo taste was beginning to dawn--that strange exuberance of fancy which heaped in one mass the most incongruous details, and was often more cumbrous and grotesque than graceful and harmonious. Nor was it probably only to this cause that the decline in the art may be attributed--the introduction of printing, and its gradual diffusion, had made manuscripts less valuable. The Reformation also, doubtless, had its share in depreciating illuminated painting, which soon ceased to be practised to any extent--excepting in Catholic countries--for the decoration of missals.