carried only one way. To complete the game, we must wait for Lottie to
bring the "Rosette" safely home with salt-petre and indigo and hides and
ginger and seersuckers and gunny-cloth. And the "North Star" must steam
her quick way across the Atlantic, and return with salt and hardware,
anchors, steel, woolens, and linens. Mary must beat her way round Cape
Horn, and home again with wool and gold and silver. And the swift
"Racer" must quickly bring the figs and prunes and raisins, and the
oranges and lemons, that will spoil if they are too long on the way.

So children may play at the carrying trade, and so their fathers and
uncles may work at it in earnest: and so also hundreds of little workers
are busy all the world over in another carrying trade, which keeps you
and me alive from day to day; and yet we scarcely think; at all how it
is going on, or stop to thank the hands that feed us.

England and Italy are kingdoms, and the United States a republic, and
they all engage in this business, and are constantly sending goods one
to another; but there are other kingdoms, not put down on any map, that
are just as busy as they, and in the same sort of work too.

The earth is one kingdom, the water another, and there is the great
republic of the gases surrounding us on every side; only we can't see
it, because its inhabitants have the fairy gift of being invisible to
us. Each of these kingdoms has products to export, and is all ready to
trade with the others, if only some one will supply the means; just as
the Frenchmen might stand on their shores, and hold out to us wines and
prunes and silks and muslins, and we might stand on our shores, and hold
out gold and silver to them, and yet could make no exchange, because
there were no ships to carry the goods across. "Ah," you may say, "that
is not at all the case here; for the earth, the air, and the water are