talents of Giotto,
despatched one of his courtiers to Tuscany, to ascertain the truth, as
to his merits, and to procure designs from other artists for his
approbation and selection. Vasari says, "The messenger, when on his way
to visit Giotto, and to enquire what other good masters there were in
Florence, spoke first with many artists in Siena--then, having received
designs from them, he proceeded to Florence, and repaired one morning to
the workshop where Giotto was occupied with his labors. He declared the
purpose of the Pope, and the manner in which that pontiff desired to
avail himself of his assistance, and finally requested to have a drawing
that he might send it to his holiness. Giotto, who was very courteous,
took a sheet of paper and a pencil dipped in a red color; then resting
his elbow on his side to form a sort of compass, with one turn of the
hand, he drew a circle so perfect and exact that it was a marvel to
behold. This done, he turned smiling to the courtier, saying, 'There is
your drawing.' 'Am I to have nothing more than this?' enquired the
latter, conceiving himself to be jested with. 'That is enough and to
spare,' replied Giotto, 'send it with the rest, and you will see if it
will not be recognized.' The messenger, unable to obtain anything more,
went away very ill satisfied, and fearing that he had been fooled.
Nevertheless, having despatched the other drawings to the Pope, with the
names of those who had done them, he sent that of Giotto also, relating
the mode in which he had made his circle, without moving his arm and
without compass; from which the Pope, and such of the courtiers as were
well versed in the subject, perceived how far Giotto surpassed all the
other painters of his time. This incident becoming known, gave rise to
the proverb still used in relation to people of dull wits, 'In sei piu
tondo che l'O di Giotto,' (round as Giotto's O,) the significance of
which consists in the double meaning of the word _tondo_, which is used
in the Tuscan for slowness of intellect, and slowness of comprehension,
as well as for an exact circle. The proverb besides has an interest from
the circumstance which gave it birth."

Giotto was immediately invited to Rome by the Pope, who received him
with distinction, and commissioned him to paint a large picture in the
sacristy of St. Peter's, with five others in the church, representing
subjects from the life of Christ, which gave so much satisfaction to the
p