1. Hilton Boyd , Corn, cash, commerce (1977), 261–3 for a subtle discussion of the context of the 1830 proposals
2. The Times, 14 12 1872, 6a
3. Mitchell B. R. and Deane P. , Abstract of British historical statistics (1971)
4. Anderson O. , ‘Wage earners and income tax: a mid-nineteenth-century discussion’, Public Administration (1963), XLI, 189
5. 05 1851, H cxvi. 727