Giotto has given him the long level trumpet, afterwards adopted so
grandly in the sculptures of La Robbia and Donatello. It is, I think,
intended to be of wood, as now the long Swiss horn, and a long and
shorter tube are bound together.

6. Tubal Cain, the instructor of every artificer in brass and iron.

Giotto represents him as sitting, _fully robed_, turning a wedge
of bronze on the anvil with extreme watchfulness.

These last three sculptures, observe, represent the life of the race of
Cain; of those who are wanderers, and have no home. _Nomad_
pastoral life; Nomad artistic life, Wandering Willie; yonder organ man,
whom you want to send the policeman after, and the gipsy who is mending
the old schoolmistress's kettle on the grass, which the squire has
wanted so long to take into his park from the roadside.

7. Then the last sculpture of the seven begins the story of the race of
Seth, and of home life. The father of it lying drunk under his
trellised vine; such the general image of civilized society, in the
abstract, thinks Giotto.

With several other meanings, universally known to the Catholic world of
that day,--too many to be spoken of here.

The second side of the tower represents, after this introduction, the
sciences and arts of civilized or home life.

8. Astronomy. In nomad life you may serve yourself of the guidance of
the stars; but to know the laws of _their_ nomadic life, your own