Note 1 — THE RIGHT OF SLAVERY.
Reading edition
Leo Africanus says, Book vii., "The King of Borno sent for the merchants of Barbary, and willed them to bring the great store of horses; for in this country they used to exchange horses for slaves, and to give fifteen and sometimes twenty slaves for one horse; and by this means there were abundance of horses brought; howbeit, the merchants were constrained to stay for their slaves till the king returned home with a great number of captives and satisfied his creditors for their horses." "The king maketh invasions but every year once, and that at one set and appointed time of the year."—Geogr. Hist. of Africa, trans. by Pory, pp. 293, 294, Lon., 1600.