Chapter I Definition of the National Income and Method of Approach; Chapter II The Number of Incomes; Chapter III Incomes Assessed to Income-Tax; Chapter IV Income (Not Wages) Exempt from Income-Tax; Chapter V Wages; Chapter VI The Whole National Income; Chapter VII Distribution of the National Income, Redistributive Taxation and Social Services; Chapter VIII The National Income From the Production Side; Chapter IX Industrial Production, 1924 and 1927–31; Chapter X Prices; Chapter XI Prices, Costs, Investment and Savings;