... encamped at this spot all the next day, and the day succeeding. Natives came into camp, at first only the men, hesitatingly; then the women. A brisk little trade sprang up for yams, bananas, m'wembe meal, eggs, and milk. No shrewder bargainer exists than your African safari man, and these soon discovered that beads and wire possessed great purchasing power in this unsophisticated country. The bartering had to be done in sign language, as Swahili seemed to be unknown; and no man in the safari ... — The Leopard Woman • Stewart Edward White et al