The wool will bear transportation.

Perhaps he gave a whole load of hay to his sheep, to produce a single bag of wool.

So the bag of wool is worth as much as the load of hay, and is very much more easily carried to market.

He can put it upon his lumber-box, and drive off fifty miles with it, to market, without any difficulty." "His lumber-box ?" asked Marco.

"What is that ?" "Didn't you ever see a lumber-box ?" asked Forester.