West African warfare in Bahia and Cuba : soldier slaves in the Atlantic world, 1807-1844 /The Anti-Slavery Conference and import duties in the Congo state /Sklavenfürsorge im Römischen Reich : Formen und Motive /Race and slavery in the Middle East : histories of trans-Saharan Africans in nineteenth-century Egypt, Sudan, and the Ottoman Mediterranean /Disidentes, rebeldes, insurgentes : resistencia indígena y negra en América Latina : ensayos de historia testimonial /Law, morality, and abolitionism : Francis Wayland and antislavery in America /