This pamphlet was published in the form of letters, written in response to queries about the inhabitants of Senegal, slavery and the slave trade, which had been put to Clarkson during his stay in Paris. Clarkson's reponse drew mainly on the account of Senegal given to him by René Geoffroy de Villeneuve, who had travelled extensively there in the late 1780s as aide-de-camp of the Governor of Goree, and gave Clarkson detailed accounts of the impact of the slave trade in the area. This publication was based on a longer series of thirteen letters which Clarkson wrote to Mirabeau between December 1789 and January 1790, the originals of which are held at the Clements Library, University of Michigan.