Thus, while the cotton cultivator has nothing to do but to raise his cotton and send it to market, the grass cultivator must not only raise his grass, but he must provide for and take care of all the animals which are to eat it.

This makes the agriculture of the northern states a far more complicated business, because the care of animals runs into great detail, and requires great skill, and sound judgment, and the exercise of constant discretion.
"You observe," continued Forester, "that it is by the intervention of animals that the farmer gets the product of his land into such a shape that it will bear transportation.

For instance, he feeds out his hay to his sheep, attending them with care and skill all the winter.

In the spring he shears off their fleeces; and now he has got something which he _can_ send to market.

He has turned his grass into wool, and thus got its value into a much more compact form.