Letter listing for 1740–1749
- Power of attorney by Guillaume Claude de Laleu and M. — Giraut, 16 June 1749
- Voltaire [François Marie Arouet] to François Thomas Marie de Baculard d’Arnaud, 18 June 1749
- Gabrielle Émilie de Châtelet-Lomont d’Haraucourt, marquise Du Châtelet-Lomont [née Le Tonnelier de Breteuil] to Jean François de Saint-Lambert, marquis de Saint-Lambert, c. 20 June 1749
- Lorenzo Brunassi, duca di San Filippo to Lodovico Antonio Muratori, 21 June 1749
- Pietro Ercole Gherardi to Lodovico Antonio Muratori, 21 June 1749
- Cardinal Fortunato Tamburini to Lodovico Antonio Muratori, 21 June 1749
- Voltaire conveys his interest in the supply of provisions to the army, June 1749 by Guillaume Claude de Laleu and M. — Giraut, 22 June 1749
- Pietro Ercole Gherardi to Lodovico Antonio Muratori, 28 June 1749
- Voltaire [François Marie Arouet] to Charles Augustin Feriol, comte d’Argental, 28 June 1749
- Voltaire [François Marie Arouet] to Claude Étienne Darget, 28 June 1749
- Claude Adrien Helvétius to Catherine Félicité Marie, queen consort of France [née Leszczyńska], 29 June 1749
- Voltaire [François Marie Arouet] to Frederick II, king of Prussia [the Great], 29 June 1749
- Louisa Ulrica, queen of Sweden to Voltaire [François Marie Arouet], 1749
- Lodovico Antonio Muratori to Cardinal Fortunato Tamburini, 30 June 1749
- François Parfaict to Voltaire [François Marie Arouet], c. 30 June 1749