for a Pamphlet 133 Rousseau's celebrated Essay on the proposed Question, "Whether the Progress of the Arts and Sciences had tended to corrupt or ameliorate the condition of Men" 134 He renounces the Appointment of Cashier to a Farmer-general of the Taxes 135 Copies Music for a Subsistence 135 1750. Ætat. 38. Great Success of his "Devin du Village," an Opera 136 His Essay on "The Origin of Inequality among Men" 137 1754. Ætat. 42. He revisits Geneva 137 Poverty of Madame de Warens 137 Rousseau abjures the Romish Faith, and again embraces the Reformed Religion 137 Is invited to reside in Geneva, his native City 138 Madame d'Epinay 138 She establishes him at the Hermitage near Montmorenci, belonging to M. d'Epinay 138 Rousseau's "Les Institutions Politiques," and other literary employments 139 Writes "La Nouvelle Héloïse" 140 Rousseau's love for the Countess d'Houdetot 141 M. de Saint Lambert 141 Cause of the Coolness between J. J. Rousseau and MM. Diderot and Grimm 144 Treachery of M. Grimm 145 State of French Society under Louis XV. 147 1758. Ætat. 46. Rousseau removes from the Hermitage to Montmorenci 148 His Quarrel with Diderot 148 He writes against the Establishment of a Theatre at Geneva 149 Sentiments expressed in his "Confessions" 149 Marshal the Duke of Luxembourg and the Duchess of Luxembourg friendly to Rousseau 149 1760. Publication of "La Nouvelle Héloïse" 150 The "Emile," or Rousseau on Education 150 Some admirable Maxims of that celebrated Treatise 150 M. de Malesherbes 151 The "Confession of a Savoyard Vicar" 152 1762. Ætat. 50. It is condemned, and Rousseau warned by the Duchess of Luxembourg to make his escape 153 He arrives at Iverdun, but is exiled by the Council of Berne 154