This difference in the value of gold, or which is the same thing, this difference in the price of corn in the two countries, would exist although the facilities of producing corn in England should far exceed those of Poland, from the greater fertility of the land, and the superiority in the skill and implements of the labourer. If however Poland should be the first to improve her manufactures, if she should succeed in making a commodity which was generally desirable, including great value in little bulk, or if she should be exclusively blessed with some natural production, generally desirable, and not possessed by other countries, she would obtain an additional quantity of gold in exchange for this commodity, which would operate on the price of her corn, cattle, and coarse clothing. The disadvantage of distance would probably be more than compensated by the advantage of having an exportable commodity of great value, and money would be permanently of lower value in Poland than in England. If on the contrary, the advantage of skill and machinery were possessed by England, another reason would be added to that which before existed, why gold should be less valuable in England than in Poland, and why corn, cattle, and clothing, should be at a higher price in the former country. These I believe to be the only two causes which regulate the comparative value of money in the different countries of the world; for although taxation occasions a disturbance of the equilibrium of money, it does so by depriving the country in which it is imposed of some of the advantages attending skill, industry, and climate.