Slavery as an industrial system

Collected Articles of Frederick Douglass

A Plea for Captain John Brown Read to the citizens of Concord, Massachusetts on Sunday evening, October thirtieth, eighteen fifty-nine

The Slave Trade, Domestic and Foreign Why It Exists, and How It May Be Extinguished

Is Slavery Sanctioned by the Bible?

Slavery

Studies on Slavery, in Easy Lessons

Thoughts on Slavery and Cheap Sugar A Letter to the Members and Friends of the British and Foreign Anti-Slavery Society

The rise, progress, and phases of human slavery How it came into the world and how it shall be made to go out

Agricola