The first and simplest form of this beautiful and familiar subject, we find in those innumerable half-length figures of the Madonna, holding her Child in her arms, painted chiefly for oratories, private or way-side chapels, and for the studies, libraries, and retired chambers of the devout, as an excitement to religious feeling, and a memorial of the mystery of the Incarnation, where large or grander subjects, or more expensive pictures, would be misplaced. Though unimportant in comparison with the comprehensive and magnificent church altar-pieces already described, there is no class of pictures so popular and so attractive, none on which the character of the time and the painter is stamped more clearly and intelligibly, than on these simple representations. The Virgin is not here the dispenser of mercy; she is simply the mother of the Redeemer. She is occupied only by her divine Son. She caresses him, or she gazes on him fondly. She presents him to the worshipper. She holds him forth with a pensive joy as the predestined offering. If the profound religious sentiment of the early masters was afterwards obliterated by the unbelief and conventionalism of later art, still this favourite subject could not be so wholly profaned by degrading sentiments and associations, as the mere portrait heads of the Virgin alone. No matter what the model for the Madonna, might have been,--a wife, a mistress, a _contadina_ of Frascati, a Venetian _Zitella_, a _Madchen_ of Nuremberg, a buxom Flemish _Frau_,--for the Child was there; the baby innocence in her arms consecrated her into that "holiest thing alive," a mother. The theme, however inadequately treated as regarded its religious significance, was sanctified in itself beyond the reach of a profane thought. Miserable beyond the reach of hope, dark below despair, that moral atmosphere which the presence of sinless unconscious infancy cannot for a moment purify or hallow! Among the most ancient and most venerable of the effigies of the Madonna, we find the old Greek pictures of the _Mater Amabilis_, if that epithet can be properly applied to the dark-coloured, sad-visaged Madonnas generally attributed to St. Luke, or transcripts of those said to be painted by him, which exist in so many churches, and are, or were, supposed by the people to possess a peculiar sanctity. These are almost all of oriental origin, or painted to imitate the pictures brought from the East in the tenth or twelfth century. There are a few striking and genuine examples of these ancient Greek Madonnas in the Florentine Gallery, and, nearer at hand, in the Wallerstein collection at Kensington Palace. They much resemble each other in the general treatment.