“Those used in trade by the Senga Company of Senegal at St. Lewis and Goree and their dependent factories of Rufisco, Camina, Juala, Gamboa (Gambia), circa 1677.

“For the convenience of trade between the French at the Senega and the natives, all European goods are reduced to a certain standard, viz., hides, bars, and slaves, for the better understanding whereof I give some instances. One bar of iron is reckoned as worth 8 hides, 1 cutlace the same, 1 cluster of bugles weighing 4¼ lbs. as 3 hides, 1 bunch of false pearls 20 hides, 1 bunch of Gallet 4 hides, 1 hogshead of brandy from 150 to 160 hides. Bugles are very small glass beads, and mostly made at Venice, and sold in strings and clusters. At Goree the same goods bear not quite so good a rate, as, for example, a hogshead of brandy brings but 140 hides, 1 lb. of gunpowder 2 hides, 1 piece of eight 5 hides, 1 oz. of coral 7 or 8 hides, 1 oz. of crystal 1 hide, an ounce of yellow amber 2 hides.

“A slave costs from 12 to 14 bars of iron, and sometimes 16, at Porto d'Ali 18 to 20, and much more at Gamboa, according to the number of ships, French, English, Portuguese, and Dutch, which happen to be there at the same time. The bar of iron is rated at 6 hides.