1. Some general Considerations. Though commerce be subject to great revolutions, yet it is possible that certain physical causes, as the quality of the soil, or the climate, may fix its nature for ever.We at present carry on the trade of the Indies merely by means of the silver which we send thither. The Romans carried annually thither about fifty millions of sesterces;1 and this silver, as ours is at present, was exchanged for merchandise, which was brought to the west. Ever……
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