Trader's personal records of Eugene Chauvet (journal, historical essays, natural history, family papers, logbooks, vade-mecum, child's sketches, and other related materials). The principal part of these papers is his "Ephemerides": a semi-journal particularly devoted to natural history (especially agricultural botany), his family life, illnesses, politics, logbooks of his travels, and to the history and description of Réunion Island in the Indian Ocean.