moved, being heavy, they made a noise like thunder; and when they were closed, they formed a platform for the apparelling of the angels and for the making of the other preparations which it was necessary to carry out within. These engines, made thus, together with many others, were invented by Filippo, although others maintain that they had been invented long before. However this may be, it was well to speak of them, seeing that they have gone completely out of use. But to return to Filippo himself; his renown and his name had grown so great that he was sent for from far distant places by all who wished to erect buildings, in their desire to have designs and models by the hand of so great a man; and to this end the most powerful means and friendships were employed. Wherefore the Marquis of Mantua, among others, desiring to have him, wrote with great insistence to the Signoria of Florence, by whom he was sent to that city, where he gave designs for dykes on the Po and certain other works according to the pleasure of that Prince, who treated him very lovingly, being wont to say that Florence was as worthy to have Filippo as a citizen as he was to have so noble and beautiful a city for his birthplace. In Pisa, likewise, Count Francesco Sforza and Niccolo da Pisa, being surpassed by him in the making of certain fortifications, commended him in his presence, saying that if every State possessed a man like Filippo it would be possible to live in security without arms. In Florence, also, Filippo gave the design for the house of the Barbadori, near the tower of the Rossi in the Borgo San Jacopo, but it was not put into execution; and he also made the design for the house of the Giuntini on the Piazza d'Ognissanti, on the Arno. Afterwards, the Captains of the Guelph party in Florence, wishing to build an edifice containing a hall and an audience-chamber for that body, gave the commission to Francesco della Luna, who began the work, and he had already raised it to the height of ten braccia above the ground, making many errors therein, when it was put into the hands of Filippo, who brought the said palace to that magnificent form which we see. In this work he had to compete with the said Francesco, who was favoured by many. Even so did he spend his whole life, competing now with one man and now with another; for many were ever making war against him and harassing him, and very often seeking to gain honour for themselves with his designs, so that he was reduced in the end to showing nothing and trusting no one. The hall of this palace is no longer used by the said Captains of the Guelphs, because the flood of the year 1557 did so great damage to the papers of the Monte, that the Lord Duke Cosimo, for the greater security of the said papers, which are of the greatest importance, removed them to the said hall together with the institution itself. And to the end that the old staircase of this palace might serve for the said body of Captains--who gave up that