6. _Tubal Cain_.

Still Giotto's, and entirely exquisite; finished with no less care than
the shepherd, to mark the vitality of this art to humanity; the spade
and hoe--its heraldic bearing--hung on the hinged door. [Footnote:
Pointed out to me by Mr. Caird, who adds farther, "I saw a forge
identical with this one at Pelago the other day,--the anvil resting on
a tree-stump: the same fire, bellows, and implements; the door in two
parts, the upper part like a shutter, and used for the exposition of
finished work as a sign of the craft; and I saw upon it the same
finished work of the same shape as in the bas-relief--a spade and a
hoe."] For subtlety of execution, note the texture of wooden block under
anvil, and of its iron hoop.

The workman's face is the best sermon on the dignity of labour yet
spoken by thoughtful man. Liberal Parliaments and fraternal Reformers
have nothing essential to say more.

7. _Noah_.

Andrea Pisano's again, more or less imitative of Giotto's work.

8. _Astronomy_.

We have a new hand here altogether. The hair and drapery bad; the face
expressive, but blunt in cutting; the small upper heads, necessarily
little more than blocked out, on the small scale; but not suggestive of
grace in completion: the minor detail worked with great mechanical
precision, but little feeling; the lion's head, with leaves in its
ears, is quite ugly; and by comparing the work of the small cusped arch