37. The advance of the quantity of accumulated and immediate labour necessary to their production, with such a per centage upon the whole of the advances for the time they have been employed as is equivalent to ordinary profits. If there be any other necessary conditions of the supply arising from monopolies of any description, or from taxes, they must be added. ELEMENTARY COSTS OF PRODUCTION. 38. An expression exactly equivalent to the conditions of the supply. MEASURE OF THE CONDITIONS OF THE SUPPLY, OR OF THE ELEMENTARY COSTS OF PRODUCTION. 39. The quantity of labour for which the commodity will exchange, when it is in its natural and ordinary state. THE VALUE, MARKET VALUE, OR ACTUAL VALUE, OF A COMMODITY AT ANY PLACE OR TIME. 40. The estimation in which it is held at that place and time, determined in all cases by the state of the supply compared with the demand, and ordinarily by the elementary costs of production which regulate that state. THE NATURAL VALUE OF A COMMODITY AT ANY PLACE AND TIME. 41. The estimation in which it is held when it is in its natural and ordinary state, determined by the elementary costs of its production, or the conditions of its supply. MEASURE OF THE MARKET OR ACTUAL VALUE OF A COMMODITY AT ANY PLACE OR TIME. 42. The quantity of labour which it will command or exchange for at that place and time. MEASURE OF THE NATURAL VALUE OF A COMMODITY AT ANY PLACE AND TIME. 43. The quantity of labour for which it will exchange at that place and time, when it is in its natural and ordinary state. THE PRICE, THE MARKET PRICE, OR ACTUAL PRICE OF A COMMODITY AT ANY PLACE AND TIME. 44. The quantity of money for which it exchanges at that place and time, the money referring to the precious metals. THE NATURAL PRICE OF A COMMODITY AT ANY PLACE AND TIME. 45. The price in money which will pay the elementary costs of its production, or the money conditions of its supply. SUPPLY OF COMMODITIES. 46. The quantity offered, or ready to be immediately offered, for sale. DEMAND FOR COMMODITIES. 47. Has two distinct meanings: one, in regard to its extent, or the quantity of commodities purchased; and the other, in regard to its intensity, or the sacrifice which the demanders are able and willing to make in order to satisfy their wants. DEMAND IN REGARD TO ITS EXTENT. 48. The quantity of the commodity purchased, which generally increases with the increase of the supply, and diminishes with the diminution of it. It is often the greatest when commodities are selling below the costs of production. DEMAND IN REGARD TO ITS INTENSITY.