The disposition of the building will be understood from the annexed plan, which shows both the atrium and the church. The former is virtually the nave; in other words, had the church been erected on the colder and stormier side of the Alps, a clerestory would have been added to the atrium, and it would have been roofed over; and then the plan would have been nearly identical with that of a Northern cathedral.
446. Plan of San Ambrogio, Milan. (From Ferrario.) Scale 100 ft. to 1 in.
The third (sexpartite) bay was revaulted in the 14th century with two oblong quadripartite vaults, but these are now replaced by sexpartite vaulting. The dome is probably an addition of the end of the 12th century, and it is raised over what would otherwise have been the fourth bay of the church. As it is, the atrium (Woodcut No. [446]) is a highly pleasing adjunct to the façade, removing the church back from the noisy world outside, and by its quiet seclusion tending to produce that devotional feeling so suitable to the entrance of a place of worship. The façade of the building itself, though, like the atrium, only in brick, is one of the best designs of its age; the upper loggia, or open gallery, of five bold but unequal arches, producing more shadow than the façade at Pisa, without the multitude of small parts there crowded together, and with far more architectural propriety and grace. As seen from the atrium, with its two towers, one on either flank, it forms a composition scarcely surpassed by any other in this style.
As now restored, the simplicity and line effect of the vaulted interior is remarkable, and it is also a museum of ecclesiological antiquities of the best class. The silver altar of Angilbertus (A.D. 835) is unrivalled either for richness or beauty of design by anything of the kind known to exist elsewhere, and the baldacchino that surmounts it is also of singular beauty: so are some of its old tombs, of the earliest Christian workmanship. Its mosaics, its pulpit, and the bronze doors, not to mention the brazen serpent—said to be the very one erected by Moses in the wilderness—and innumerable other relics, make this church one of the most interesting of Italy, if not indeed of all Europe.
447. Atrium of San Ambrogio, Milan. (From Ferrario.[[297]])
Generally speaking, the most beautiful part of a Lombard church is its eastern end. The apse with its gallery, the transepts, and above all the dome that almost invariably surmounts their intersection with the choir, constitute a group which always has a pleasing effect, and is very often highly artistic and beautiful. The sides of the nave, too, are often well designed and appropriate; but, with scarcely a single exception, the west end, or entrance front, is comparatively mean. The building seems to be cut off at a certain length without any appropriate finish, or anything to balance the bold projections towards the east. The French cathedrals, on the contrary, while they entirely escape this defect by means of their bold western towers, are generally deficient in the eastern parts, and almost always lack the central dome or tower. The English Gothic architects alone understood the proper combination of the three parts. The Italians, when they introduced a tower, almost always used it as a detached object, and not as a part of the design of the church. In consequence of this the façades of their churches are frequently the least happy parts of the composition, notwithstanding the pains and amount of ornament lavished upon them.
448. Façade of the Cathedral at Piacenza. (From Chapuy, ‘Moyen-Âge Monumental.’)