The expression, "natural monopoly," is sometimes used of those, who, under freedom, and using to the utmost their natural gifts and acquired skill, have distanced all local competitors, and may be said to control the market in their own interest, furnishing the best goods at the cheapest rates. This is in no proper sense of the term a "monopoly." Production has no complaint to make of any such pre-eminence in excellence and opportunity. It harms nobody and benefits everybody. Exchange rejoices over every man and woman and child, who so puts his head and heart and hand into his own peculiar product as to outstrip all others in that one line in point of ease and excellence, and so be able to offer a service at once better and cheaper than any one else can offer it then and there; and when all men and women and children, so far as they are employed commercially, come to possess a "natural monopoly" each in his own specialty, then Exchanges become as profitable and progressive as possible then and there, because the ever-blessed diversity of relative advantage has its utmost limit. 4. We come now to consider the natural LIMITS, if any such there be, to the Production of material commodities. This point has been much discussed. For example, Dr. Chalmers, a Scotch clergyman of great intelligence, profoundly moved by the condition of the poor in Glasgow, published in 1822 an interesting but not over-sound treatise entitled "Political Economy," in which the proposition is maintained, that the universal market is strictly limited, and therefore that, were it not for the unproductive consumption of the rich and luxurious, and the equally unproductive consumption of national wars, there would soon be a general glut of material commodities, and consequently Production would have to cease for the lack of a vent for its products. Pretty soon we shall be able to detect the enormous fallacy in this proposition. On the other hand, in 1803, Jean-Baptiste Say, a very competent French economist, in chapter xv of his well-known treatise, fully developed this very important proposition, if true, namely, _that production may go on indefinitely in all directions without ever a fear of reaching a general glut of products_.