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great extent, occupied in procuring and laying up store of corn, wine, wool, silk, and other such presentable materials of food and clothing; and that it has a currency representing them. Imagine farther, that on days of festivity, the society, discovering itself to derive satisfaction from pyrotechnics, gradually turns its attention more and more to the manufacture of gunpowder; so that an increasing number of labourers, giving what time they can spare to this branch of industry, bring increasing quantities of combustibles into the store, and use the general orders received in exchange to obtain such wine, wool, or corn, as they may have need of. The currency remains the same, and represents precisely the same amount of material in the store, and of labour spent in producing it. But the corn and wine gradually vanish, and in their place, as gradually, appear sulphur and saltpetre, till at last the labourers who have consumed corn and supplied nitre, presenting on a festal morning some of their currency to obtain materials for the feast, discover that no amount of currency will command anything Festive, except Fire. The supply of rockets