"This altogether extinguished the hope with which we had started of making our fortunes by importing to Bagdad splendid specimens of various precious stones. For when we considered the vast expense of procuring large quantities of tusks, the difficulty of getting slaves to carry them up the country, and of feeding those slaves on so long a journey, together with the danger of being robbed of such cumbersome and valuable property by some of the many wild tribes through whose territories we must pass, we were fain to conclude that we must needs abandon that part of our enterprise. "As we were one day sitting in a very gloomy mood discussing this matter, an African merchant with whom we had become acquainted, and who happened to be passing, saluted us; and we, having invited him to be seated with us, 'What,' he asked, 'is that which you cannot do? for as I came up I heard you pronounce these words: "No, it is not possible to do it."' "With that I explained to him, without mentioning particularly the country of the precious stones, that Ahmed and myself had intended to proceed still further into the interior to trade with the people, but many of them, as we were now informed, exchanged only against ivory. And it appeared to us impossible to do any profitable trade if we must convey such a heavy and valuable commodity as ivory over long distances. "The African merchant, when he heard this, smiled, and asked, 'What would you give now to anyone who should get you out of this difficulty?' "I answered that, as it was a difficulty which we had often discussed, but could see no way out of, and as it threatened to make our journey into Africa comparatively unprofitable, we should be very willing to give any man who could render us effectual assistance a hundred pieces of gold for his trouble. "'No,' said he, 'you offer too little. I can myself most effectually aid you, but I must have five hundred pieces of gold.' "We protested that we could not give so much, that we had it not, that it would ruin us; in short, all the pleas that merchants, as you knew, advance when they are chaffering with each other. But after several days, seeing that the African merchant stood quite firm and would abate nothing from his price, we agreed to give him the five hundred pieces of gold for the secret he was to discover to us, namely, of how we should provide ourselves with ivory for trading with the tribes, no matter how far up the country they might be situated. "We having on our part produced five bags containing one hundred gold pieces in each, which we counted out to him, he produced and gave to us in return five small jars, each containing about two quarts of a seed about twice as large as a bean.