the two cases is obviously different. Were a number of adjoining pastures, already fully stocked, to be at once thrown open, and converted into one vast common, the position of the point of saturation would immediately be changed". In his Lectures on Population, Value, Poor Laws and Rent (1837) he introduced a concise and complete statement of the concept of diminishing marginal utility, and connected demand to value, but he presents neither derivation nor elaboration. Still this contribution places him clearly in the ranks of the Oxford-Dublin school of proto-Marginalists. Major works of William F. Lloyd Lecture on the Notion of Value, as distinguished not only from utility, but also from value in exchange, 1833. Two Lectures on the Checks to Population, 1833. Four Lectures on Poor-Laws, 1835 Two Lectures on the Justice of the Poor-Laws and One Lecture on Rent, 1837. Lectures on Population, Value, Poor Laws and Rent, 1837. References External links Profile of William Forster Lloyd at the History of Economic Thought website Two Lectures on the Checks to Population 1794 births 1852 deaths People from Buckinghamshire British economists Fellows of the Royal Society People educated at Westminster School, London Alumni of Christ Church, Oxford Drummond Professors of Political Economy