Preface I. True fiction and Diderot's poétique du conte II. Diderot and literary invention III. Mademoiselle de La Chaux as a translator of Hume IV. Mademoiselle de La Chaux, Hume and Diderot's early thought V. Chronology and les petites circonstances VI. Personal history and true fiction VII. The Lettre à mademoiselle..... VIII. Some conclusions IX. Afterthoughts Appendix: Jean-Baptiste Gardeil Index