But almost three-quarters of a century before, in 1690, John Locke published his two treatises on government. Rousseau was familiar with them. Mr. John Morley, in his admirable study of Rousseau, [Rousseau. By John Morley. London: Chapman & Hall. 1873I have used it freely in the glance at this period.]fully discusses the latter's obligation to Locke; and the exposition leaves Rousseau little credit for originality, but considerable for illogical misconception.