of francs, or six hundred thousand dollars. Being invested in
commerce, his property yielded, and ought to have yielded, an income
of twenty _per cent_. Nevertheless, an inventory made in 1469
showed, that, after twenty-nine years, he left to his son Pietro a
fortune but just about equal in amount to that which he had himself
received from his father.

With six hundred thousand dollars for his whole capital, then, Cosmo
was able to play his magnificent part in the world's history; while
the Duke of Milan, son of the peasant Sforza, sometimes expended more
than that sum in a single year. So much difference was there between
the position and requirements of an educated and opulent
first-citizen, and a low-born military _parvenu_, whom, however,
Cosmo was most earnest to encourage and to strengthen in his designs
against the liberties of Lombardy.

This Riccardi palace, as Cosmo observed after his poor son Peter had
become bed-ridden with the gout, was a marvellously large mansion for
so small a family as one old man and one cripple. It is chiefly
interesting, now, for the frescos with which Benozzo Gozzoli has
adorned the chapel. The same cause which has preserved these beautiful
paintings so fresh, four centuries long, has unfortunately always
prevented their being seen to any advantage. The absence of light,
which has kept the colors from fading, is most provoking, when one
wishes to admire the works of a great master, whose productions are so
rare.

Gozzoli, who lived and worked through the middle of the fifteenth
century, is chiefly known by his large and graceful compositions in
the Pisan Campo Santo. These masterpieces are fast crumbling into