']0) ON THE CAUSES one hand, whether any circumstance assigned as a cause can be correctly admitted to rank under this denomination, and, on the other hand, whether any circumstance alleged to have no influence can be justly excluded. It was explained in the first chapter, that value, although spoken of as a quality adhering to external objects, or as a relation between them, implies a feeling or state of mind, which manifests itself in the determination of the will. This feeling or state of mind may be the result of a variety of considerations connected with exchangeable commodities, and an inquiry into the causes of value is, in reality, an inquiry into those external circumstances, which operate so steadily upon the minds of men, in the interchange of the necessaries, comforts, and conveniences of life, as to be subjects of inference and calculation. These circumstances may either act directly on the mind, as considerations immediately influencing its views, or they may operate indirectly, by only causing certain uniform considerations to be presented