A discussion on slaveholding [electronic resource] : three letters to a conservative / by George D. Armstrong, D.D., of Virginia ; and three conservative replies, by C. Van Rensselaer, D.D., of New Jersey : I. On the Scriptural doctrine of slaveholding. II. On emancipation and the church. III. On the historical argument for slaveholding : together with two rejoinders, on slaveholding, schemes of emancipation, colonization, etc.