Manuscript Summary:This paper manuscript contains multiple texts by Marcel Moureau, described in a table of contents (p. 436-s25). The author, after having studied at the Jesuit College of Porrentruy, entered the Cistercian abbey of Lucelle, where he taught philosophy and theology, as he did later at Hauterive and at Neubourg (Alsace). From 1782, he served as priest in Folgensbourg (Alsace), and this is the title that he uses at the bottom of the title page of the first text in this collection – Introductio in Historiam Patriam Veterum Rauracorum… (p. V3) – dedicated to his history of Rauracia, its etymology, its locales, its language (particularly the patois), etc. (pp. 1-76). Written in Latin as a dialogue, the six parts of this history were dedicated in 1784 to Bishop Sigismond de Roggenbach (pp. V5-V9). Then follows the history of the monastery of Neubourg, also by Marcel Moreau (pp. 81-101). Afterwards appear a series of copies of letters sent to the National Assembly, in connection with the efforts to preserve the religious orders and to prevent the alienation of ecclesiastical property (pp. 105-131; 133-144; 149-160; 165-168), followed by the “Correspondance d’un Suisse avec un Rauraque relativement à la révolution operée dans la principauté de Porrentruy en 1792 et 1793…” (pp. 173-216). These are the same years covered by the next text of Moreau, “Bulletin des faits arrivés dans l’Évêché de Bâle” (pp. 225-372). Then follows a second series of letters, these pastoral in nature, from the bishop of Alès, Louis-François de Bausset (p. 373 ff.) and from the titular bishop of Lydda, Jean-Baptiste Gobel (p. 393 ff.). Marcel Moreau’s final texts, laid out in epistolary style, describe an “Itinéraire de la Suisse septentrionale” (pp. 436-s1-436-s23) and a “Promenade fatigante mais agréable du Pichoux” (pp. 437-502).(rou)