Michelangelo arrived at the moment I am attempting to indicate. He protested that architecture was not his trade. Over and over again he repeated this to his Medicean patrons; but they compelled him to build, and he applied himself with the predilections and prepossessions of a plastic artist to the task. The result was a retrogression from the point reached by his immediate predecessors to the vicious system followed by the pseudo-Gothic architects in Italy. That is to say, he treated the structure as an inert mass, to be made as substantial as possible, and then to be covered with details agreeable to the eye. At the beginning of his career he had a defective sense of the harmonic ratios upon which a really musical building may be constructed out of mere bricks and mortar—such, for example, as the Church of S. Giustina at Padua. He was overweighted with ill-assimilated erudition; and all the less desirable licenses of Brunelleschi's school, especially in the abuse of square recesses, he adopted without hesitation. It never seems to have occurred to him that doors which were intended for ingress and egress, windows which were meant to give light, and attics which had a value as the means of illumination from above, could not with any propriety be applied to the covering of blank dead spaces in the interiors of buildings.
The vestibule of the Laurentian Library illustrates his method of procedure. It is a rectangular box of about a cube and two thirds, set length-way up. The outside of the building, left unfinished, exhibits a mere blank space of bricks. The interior might be compared to a temple in the grotesque-classic style turned outside in: colossal orders, meaningless consoles, heavy windows, square recesses, numerous doors—the windows, doors, and attics having no right to be there, since they lead to nothing, lend view to nothing, clamour for bronze and sculpture to explain their existence as niches and receptacles for statuary. It is nevertheless indubitably true that these incongruous and misplaced elements, crowded together, leave a strong impression of picturesque force upon the mind. From certain points and angles, the effect of the whole, considered as a piece of deception and insincerity, is magnificent. It would be even finer than it is, were not the Florentine pietra serena of the stonework so repellent in its ashen dulness, the plaster so white, and the false architectural system so painfully defrauded of the plastic forms for which it was intended to subserve as setting.
We have here no masterpiece of sound constructive science, but a freak of inventive fancy using studied details for the production of a pictorial effect. The details employed to compose this curious illusion are painfully dry and sterile; partly owing to the scholastic enthusiasm for Vitruvius, partly to the decline of mediaeval delight in naturalistic decoration, but, what seems to me still more apparent, through Michelangelo's own passionate preoccupation with the human figure. He could not tolerate any type of art which did not concede a predominant position to the form of man. Accordingly, his work in architecture at this period seems waiting for plastic illustration, demanding sculpture and fresco for its illumination and justification.
It is easy, one would think, to make an appeal to the eye by means of colossal orders, bold cornices, enormous consoles, deeply indented niches. How much more easy to construct a box, and then say, "Come, let us cover its inside with an incongruous and inappropriate but imposing parade of learning," than to lift some light and genial thing of beauty aloft into the air, as did the modest builder of the staircase to the hall at Christ Church, Oxford! The eye of the vulgar is entranced, the eye of the artist bewildered. That the imagination which inspired that decorative scheme was powerful, original, and noble, will not be denied; but this does not save us from the desolating conviction that the scheme itself is a specious and pretentious mask, devised to hide a hideous waste of bricks and mortar.
Michelangelo's imagination, displayed in this distressing piece of work, was indeed so masterful that, as Vasari says, a new delightful style in architecture seemed to be revealed by it. A new way of clothing surfaces, falsifying façades, and dealing picturesquely with the lifeless element of Vitruvian tradition had been demonstrated by the genius of one who was a mighty amateur in building. In other words, the Barocco manner had begun; the path was opened to prank, caprice, and license. It required the finer tact and taste of a Palladio to rectify the false line here initiated, and to bring the world back to a sense of seriousness in its effort to deal constructively and rationally with the pseudo-classic mannerism.
The qualities of wilfulness and amateurishness and seeking after picturesque effect, upon which I am now insisting, spoiled Michelangelo's work as architect, until he was forced by circumstance, and after long practical experience, to confront a problem of pure mathematical construction. In the cupola of S. Peter's he rose to the stern requirements of his task. There we find no evasion of the builder's duty by mere surface-decoration, no subordination of the edifice to plastic or pictorial uses. Such side-issues were excluded by the very nature of the theme. An immortal poem resulted, an aërial lyric of melodious curves and solemn harmonies, a thought combining grace and audacity translated into stone uplifted to the skies. After being cabined in the vestibule to the Laurentian Library, our soul escapes with gladness to those airy spaces of the dome, that great cloud on the verge of the Campagna, and feels thankful that we can take our leave of Michelangelo as architect elsewhere.
VI
While seeking to characterise what proved pernicious to contemporaries in Michelangelo's work as architect, I have been led to concentrate attention upon the Library at S. Lorenzo. This was logical; for, as we have seen, Vasari regarded that building as the supreme manifestation of his manner. Vasari never saw the cupola of S. Peter's in all its glory, and it may be doubted whether he was capable of learning much from it.
The sacristy demands separate consideration. It was an earlier work, produced under more favourable conditions of place and space, and is in every way a purer specimen of the master's style. As Vasari observed, the Laurentian Library indicated a large advance upon the sacristy in the development of Michelangelo's new manner.
At this point it may not unprofitably be remarked, that none of the problems offered for solution at S. Lorenzo were in the strictest sense of that word architectural. The façade presented a problem of pure panelling. The ground-plan of the sacristy was fixed in correspondence with Brunelleschi's; and here again the problem resolved itself chiefly into panelling. A builder of genius, working on the library, might indeed have displayed his science and his taste by some beautiful invention adapted to the awkward locality; as Baldassare Peruzzi, in the Palazzo Massimo at Rome, converted the defects of the site into graces by the exquisite turn he gave to the curved portion of the edifice. Still, when the scheme was settled, even the library became more a matter of panelling and internal fittings than of structural design. Nowhere at S. Lorenzo can we affirm that Michelangelo enjoyed, the opportunity of showing what he could achieve in the production of a building independent in itself and planned throughout with a free hand. Had he been a born architect, he would probably have insisted upon constructing the Medicean mausoleum after his own conception instead of repeating Brunelleschi's ground-plan, and he would almost certainly have discovered a more genial solution for the difficulties of the library. But he protested firmly against being considered an architect by inclination or by education. Therefore he accepted the most obvious conditions of each task, and devoted himself to schemes of surface decoration.