any other, paid no attention to this in a vault of such size and importance, much less should he do so in a coffered ceiling with far smaller panels. Nevertheless many craftsmen, and Michelagnolo in particular, have been of the opinion that the Ritonda was built by three architects, of whom the first carried it as far as the cornice that is above the columns, and the second from the cornice upwards, the part, namely, that contains those windows of more graceful workmanship, for in truth this second part is very different in manner from the part below, since the vaulting was carried out without any relation between the coffering and the straight lines of what is below. The third is believed to have made the portico, which was a very rare work. And for these reasons the masters who practise this art at the present day should not fall into such an error and then make excuses, as did Andrea. After that work, having received from the family of the Corbinelli the commission for the Chapel of the Sacrament in the same church, he carried it out with much diligence, imitating in the low-reliefs Donato and other excellent craftsmen, and sparing no labour in his desire to do himself credit, as, indeed, he did. In two niches, one on either side of a very beautiful tabernacle, he placed two saints somewhat more than one braccio in height, S. James and S. Matthew, executed with such spirit and excellence, that every sort of merit is revealed in them and not one fault. Equally good, also, are two Angels in the round that are the crowning glory of this work, with the most beautiful draperies--for they are in the act of flying--that are anywhere to be seen; and in the centre is a little naked Christ full of grace. There are also some scenes with little figures in the predella and over the tabernacle, all so well executed that the point of a brush could scarcely do what Andrea did with his chisel. But whosoever wishes to be amazed by the diligence of this extraordinary man should look at the architecture of this work as a whole, for it is so well executed and joined together in its small proportions that it appears to have been chiselled out of one single stone. Much extolled, also, is a large Pieta of marble that he made in half-relief on the front of the altar, with the Madonna and S. John weeping. Nor could one imagine any more beautiful pieces of casting than are the bronze gratings that enclose that chapel, with their ornaments of marble, and with stags, the device, or rather the arms, of the Corbinelli, which serve as adornments for the bronze candelabra. In short, this work was executed without any sparing of labour, and with all the best considerations that could possibly be imagined.