hitherto has been for no other cause but to show with what diligence I have applied myself and still apply myself to matters of art, and with what good reasons I could excuse myself if in some cases (which I believe, indeed, are many) I have failed. [Illustration: FRESCO IN THE HALL OF LORENZO THE MAGNIFICENT (_After =Giorgio Vasari=. Florence: Palazzo Vecchio_) _Brogi_] I will add, also, that about the same time I received orders to design all the arches to be shown to his Excellency for the purpose of determining the whole arrangement of the numerous festive preparations already described, executed in Florence for the nuptials of the most illustrious Lord Prince, of which I had then to carry into execution and finish a great part; to cause to be painted after my designs, in ten pictures each fourteen braccia high and eleven broad, all the squares of the principal cities of the dominion, drawn in perspective with their original builders and their devices; also, to have finished the head-wall of the above-named Hall, begun by Bandinelli, and to have a scene made for the other, the greatest and richest that was ever made by anyone; and, finally, to execute the principal stairs of that Palace, with their vestibules, the court and the columns, in the manner that everyone knows and that has been described above, with fifteen cities of the Empire and of the Tyrol depicted from the reality in as many pictures. Not little, also, has been the time that I have spent in those same days in pushing forward the construction, from the time when I first began it, of the loggia and the vast fabric of the Magistrates, facing towards the River Arno, than which I have never had built anything more difficult or more dangerous, from its being founded over the river, and even, one might say, in the air. But it was necessary, besides other reasons, in order to attach to it, as has been done, the great corridor which crosses the river and goes from the Ducal Palace to the Palace and Garden of the Pitti; which corridor was built under my direction and after my design in five months, although it is a work that one might think impossible to finish in less than five years. In addition, it was also my task to cause to be reconstructed and increased for the same nuptials, in the great tribune of S. Spirito, the new machinery for the festival that used to be held in S. Felice in Piazza; which was all reduced to the greatest possible perfection, so that there are no longer any of those dangers that used to be incurred in that festival. And under my charge, likewise, have been the works of the Palace and Church of the Knights of S. Stephen at Pisa, and the tribune, or rather, cupola, of the Madonna dell' Umilta in Pistoia, which is a work of the greatest importance. For all which, without excusing my imperfection, which I know only too well, if I have achieved anything of the good, I render infinite thanks to God, from whom I still hope to