"Slavery Justification." . . "Slavery in the United States Controversial literature 1844." . . "1844" . . . . . . . . . . "Slavery a treatise, showing that slavery is neither a moral, political, nor social evil"@en . . . "Slavery a treatise, showing that slavery is neither moral, political, nor social evil"@en . . . . "Slavery : a treatise, showing that slavery is neither a moral, political, nor social evil"@en . "Slavery. A treatise, showing that slavery is neither a moral, political, nor social evil"@en . . . . . . "Electronic books"@en . . . "Slavery. A treatise, showing that slavery is neither a moral, plitical, nor social evil" . "Controversial literature"@en . . . . . . . "Slavery A treatise, showing that slavery is neither a moral, political, nor social evil"@en . . .