Page:The wealth of nations, volume 1.djvu/436

 A bank cannot, consistently with its own interest, advance to a trader the whole or even the greater part of the circulating capital with which he trades; because, though that capital is continually returning to him in the shape of money, and going from him in the same shape, yet the whole of the returns is too distant from the whole of the outgoings, and the sum of his repayments could not equal the sum of its advances within such moderate periods of time as suit the convenience of a bank. Still less could a bank afford to advance him any considerable part of his fixed capital; of the capital which the undertaker of an iron forge, for example, employs in erecting his forge and smelting-house, his workhouses, and warehouses, the dwelling-houses of his workmen, etc.; of the capital which the undertaker of a mine employs in sinking his shafts, in erecting engines for drawing out the water, in making roads and wagon-ways, etc.; of the capital which the person who undertakes to improve land employs in clearing, draining, inclosing, manuring and plowing waste and uncultivated fields, in building farmhouses, with all their necessary appendages of stables, granaries, etc. The returns of the fixed capital are in almost all cases much slower than those of the circulating capital; and such expenses, even when laid out with the greatest prudence and judgment, very seldom return to the undertaker till after a period of many years, a period by far too distant to suit the convenience of a bank. Traders and other undertakers may, no doubt, with great propriety, carry on a very considerable part of their projects with borrowed money. In justice to their creditors, however, their own capital ought, in this case, to be sufficient to insure, if I may say so, the capital of those creditors; or to render it extremely improbable that those