It thus happened that we find in primitive communities one particular commodity of general use being selected for the purpose of what is now called currency. It is very likely that this process arose quite unconsciously; the hatter who did not want bread may very likely have observed that the baker had something, such as a hit of leather, which was more durable than bread, and which the hatter could be quite certain that either he himself would want at some time, or that somebody else would want, and he would therefore always be able to exchange it for something that he wanted. All that is needed for currency in a primitive or any other kind of people is that it should be, in the first place, durable, in the second place in universal demand, and, in the third place, more or less portable. If it also possessed the quality of being easily able to be sub-divided without impairing its value, and was such that the various pieces into which it was sub-divided could be relied on not to vary in desirability, then it came near to perfection from the point of view of currency. All these qualities were possessed in an eminent degree by the precious metals. It is an amusing commentary on the commonly assumed material outlook of the average man that the article which has won its way to supremacy as currency by its universal desirability, should be the precious metals which are practically useless except for purposes of ornamentation. For inlaying armour and so adorning the person of a semi-barbarous chief, for making into ornaments for his wives, and for the embellishment of the temples of his gods, the precious metals had eminent advantages, so eminent that the practical common sense of mankind discovered that they could always be relied upon as being acceptable on the part of anybody who had anything to sell. In the matter of durability, their power to resist wear and tear was obviously much greater than that of the hides and tobacco and other commodities then fulfilling the functions of currency in primitive communities. They could also be carried about much more conveniently than the cattle which have been believed to have fulfilled the functions of currency in certain places, and they were capable of sub-division without any impairing of their value, that is to say, of their acceptability. Merely as currency, precious metals thus have advantages over any other commodity that can be thought of for this purpose.