Written in response to Lamiral's L'Affrique et le peuple affriquain considérés sous tous leurs rapports avec notre commerce et nos colonies (1789), this pamphlet, signed "By a friend of the Whites and the Blacks", exposes some of the inherent contradictions on the subject of the slave trade in Lamiral's thinking, and defends the Amis des Noirs against his attacks. His book is compared to the self-contradicting evidence presented to the British House of Commons by pro-slave trade witnesses in 1789-90. The pamphlet cites Clarkson's Lettre aux auteurs du Journal de Paris (1790) on the effects of the slave trade on Africa, and calls for a French free colony similar to the British Sierra Leone to be set up in Senegal.