An Introductory Lecture on Political Economy [1827] Three Lectures on the Transmission of the Precious Metals [1828] Two Lectures on Population with a Correspondence Between the Author and T.R. Malthus [1829] Three Lectures on the Cost of Obtaining Money [1830] Two Letters on the Factory Acts [1837] Three Lectures on the Value of Money [1840] Four Introductory Lectures on Political Economy [1852]