Next in order, as accessory figures, appear some one or two or more of the martyrs, confessors, and virgin patronesses, with their respective attributes, either placed in separate niches and compartments on each side, or, when admitted within the sacred precincts where sits the Queenly Virgin Mother and her divine Son, standing, in the manner of councillors and officers of state on solemn occasions, round an earthly sovereign, all reverently calm and still; till gradually this solemn formality, this isolation of the principal characters, gave way to some sentiment which placed them in nearer relation to each other, and to the divine personages. Occasional variations of attitude and action were introduced--at first, a rare innovation; ere long, a custom, a fashion. For instance;--the doctors turn over the leaves of their great books as if seeking for the written testimonies to the truth of the mysterious Incarnation made visible in the persons of the Mother and Child; the confessors contemplate the radiant group with rapture, and seem ready to burst forth in hymns of praise; the martyrs kneel in adoration; the virgins gracefully offer their victorious palms: and thus the painters of the best periods of art contrived to animate their sacred groups without rendering them too dramatic and too secular. Such, then, was the general arrangement of that religious subject which is technically styled "The Madonna enthroned and attended by Saints." The selection and the relative position of these angelic and saintly accessories were not, as I have already observed, matters of mere taste or caprice; and an attentive observation of the choice and disposition of the attendant figures will often throw light on the original significance of such pictures, and the circumstances under which they wore painted. Shall I attempt a rapid classification and interpretation of these infinitely varied groups? It is a theme which might well occupy volumes rather than pages, and which requires far more antiquarian learning and historical research than I can pretend to; still by giving the result of my own observations in some few instances, it may be possible so to excite the attention and fancy of the reader, as to lead him further on the same path than I have myself been able to venture. * * * * * We can trace, in a large class of these pictures, a general religious significance, common to all periods, all localities, all circumstances; while in another class, the interest is not only particular and local, but sometimes even personal.