Voltaire is in Senones undertaking research in the library for his universal history (Essai sur les mœurs). Villaume writes a bibliographic reference at the top of the letter, to which Voltaire appends a quote in Latin, both of which are omitted from published versions of this letter. Voltaire is asking Dupont for information relating to this reference.

The variant appears in marginal notes on p.85 of a 1742 edition of the Œuvres melées published by Bousquet. The variant concerns verse 91.

Official approval of the MS has been recorded on p.107 in a note reading: ‘Lu et aprouvé les changemens. A Paris le 8 juin 1779. Suard. Vue l’aprobation, Permis de representer et d’imprimer ce 9 juin 1779. Lenoir.’

The MS consists of five fascicules bound together and was submitted to the censor, Crébillon by the comédiens in 1761. His official approval is noted on the verso of the final leaf: ‘Jay lu par ordre de Monsieur le Lieutenant Général de Police l’Ecueil du Sage et je crois que l’on peut en permettre la représentation. Ce 26 9bre 1761. Crébillon. Vû L’aprobation Permis de representer ce 28 9bre 1761. de Sartine.’