Slavery - Law and legislation - United States

Constitution and act of incorporation of the Pennsylvania Society, for Promoting the Abolition of Slavery and the Relief of Free Negroes, Unlawfully held in Bondage. And for Improving the Condition of the African Race : To which are added, the acts of the General Assembly o Pennsylvania for the gradual abolition of slavery, and the acts of the Congress of the United States, respecting slaves and the slave trade. [Three lines from Matthew].