" == External links content to be put into article prose? == * All Works in Chronological Order * ""To the Non-Slaveholders of the South: A Plan for the Abolition of Slavery"" (1858) * Vices Are Not Crimes: A vindication of Moral Liberty (1875) * No Treason (1867–1870 text) * Natural Law, or the Science of Justice (1882) * ""A Letter to Thomas F. Bayard: Challenging His Right – And that of All the Other So-Called Senators and Representative in Congress – To Exercise Any Legislative Power Whatever Over the People of the United States"" (1882) * The Unconstitutionality of Slavery (1860) * The Law of Intellectual Property: or an essay on the
" == External links content to be put into article prose? == * All Works in Chronological Order * ""To the Non-Slaveholders of the South: A Plan for the Abolition of Slavery"" (1858) * Vices Are Not Crimes: A vindication of Moral Liberty (1875) * No Treason (1867–1870 text) * Natural Law, or the Science of Justice (1882) * ""A Letter to Thomas F. Bayard: Challenging His Right – And that of All the Other So-Called Senators and Representative in Congress – To Exercise Any Legislative Power Whatever Over the People of the United States"" (1882) * The Unconstitutionality of Slavery (1860) * The Law of Intellectual Property: or an essay on the Constitution