In Brazil sugar was the great slave labor staple; in America, cotton.

Besides, the South with its slave labor could not indulge in manufacturing.

The North soon found slave labor unprofitable and rid itself of slavery.

And this is what the great system of slave labor has accomplished.

Mr. Habersham affirmed that the Colony could not prosper without slave labor.

The competition of slave labor, however, tends to keep wages very low.

In the Caribbean, these needs were filled by slave labor and deforestation.

The great Washington himself wrote of the evils of slave labor.

The territory is unfitted for the profitable employment of slave labor.

The need for slave labor for such work was greater than the supply.

The tariff question grew out of a contest between free and slave labor.

He no longer uses sugar in his tea, it's produced by slave labor.

There were the mines, the forests, and slave labor to cut down expenses.

The price of books made by slave labor was necessarily low.

It had introduced slave labor, against which no freeman could hope to compete.

They did not want to come in competition with slave labor.