This collection of two hundred and thirty letters includes a variety of correspondence, mostly by French scientists affiliated with the Athénée de Paris, dated between 1792 and 1853. The correspondence contains letters and receipts addressed to lecturers at the Athénée, largely related to curricular matters and remuneration for courses taught, although some express private concerns such as dinner dates and employment opportunities. Much of the correspondence between 1808 and 1836 is addressed to the French physicist and mathematician André-Marie Ampère (1775-1836), Inspector General of the newly formed French university system and, after 1824, chairman of Experimental Physics at the College de France. Many of the letters are addressed the geologist, mineralogist and mining engineer Pierre Berthier (1782-1861) a member of the Academie des Sciences, who discovered bauxite and engaged in research on blast furnaces. The largest number of letters and receipts in the collection [twenty-one items] come from the pen of Henri Marie Ducrotoy Blainville (1777-1850), the zoologist and anatomist trained by Georges Cuvier, who occasionally lectured at the College de France and the Athénée de Paris before becoming a member of the French Academie des Sciences and being appointed to the chair of Natural History. Table of contents available