%0 Book %I Printed by Joseph James ... %D 1787 %C Philadelphia %G English %T The constitution of the Pennsylvania Society for Promoting the Abolition of Slavery and the relief of free Negroes, unlawfully held in bondage : begun in the year 1774 and enlarged on the twenty-third of April 1787 : to which are added the acts of the General Assembly of Pennsylvania, for the gradual abolition of slavery