Value -- The economics of the individual -- Fundamental theorem of the transformation of any given number of goods -- Final degree of utility of instrumental goods -- Cases where the final degree of utility of money is approximately constant -- Relationship between the final degree of utility of money and the prosperity of a people -- The variety of human needs -- Discontinuity of the phenomenon -- Final degree of utility of instrumental goods of various orders -- Supply and demand -- Law of the variation of supply and demand -- Law of supply and demand assuming that the final degree of utility of an economic good decreases when the quantity of the latter increases -- Determination of the final degree of utility when the laws of demand and supply are known -- Need for new phenomena to be considered -- Numerical calculation of the final degrees of utility -- Usefulness of measuring the final degrees of utility -- Necessary qualities that restrict the laws of demand -- Fungible economic goods -- Average final degrees of utility for more than one person -- Total utility -- Fundamental property of final degrees of utility -- Daniel Bernoulli's theorem -- Final degree of utility of money -- Most general form of the final degrees of utility -- Some examples of total utility -- Final degrees of utility corresponding to particular laws of supply and demand.