Letter listing for 1740–1749
- Françoise Paule Huguet de Graffigny [née d’Issembourg Du Buisson d’Happoncourt] to François Antoine Devaux, c. 30 June 1740
- Gabrielle Émilie de Châtelet-Lomont d’Haraucourt, marquise Du Châtelet-Lomont [née Le Tonnelier de Breteuil] to Johann Bernoulli, 30 June 1740
- Voltaire [François Marie Arouet] to Everard Titon Du Tillet, c. 30 June 1740
- La Réception et l'enregistrement des mémoires by Académie de Dijon, July 1740
- père Pierre Robert Le Cornier de Cideville, abbé Cideville to Voltaire [François Marie Arouet], 1 July 1740
- Voltaire [François Marie Arouet] to Frederick II, king of Prussia [the Great], c. 1 July 1740
- Françoise Paule Huguet de Graffigny [née d’Issembourg Du Buisson d’Happoncourt] to François Antoine Devaux, c. 2 July 1740
- Alexander Pope to Hugh Hume Campbell, 3rd earl of Marchmont, 2 July 1740
- Voltaire [François Marie Arouet] to Jan van Duren, 3 July 1740
- Voltaire [François Marie Arouet] to Jeanne Françoise Quinault, 3 July 1740
- Alexander Pope to Reverend Doctor William Warburton, bishop of Gloucester, 4 July 1740
- Filippo Argelati to Lodovico Antonio Muratori, 5 July 1740
- Voltaire [François Marie Arouet] to Frederick II, king of Prussia [the Great], 5 July 1740
- Voltaire [François Marie Arouet] to René Louis de Voyer de Paulmy d’Argenson, 2nd marquis d’Argenson, 6 July 1740
- John Barber, lord mayor of London to Martha Whiteway [née Swift], 7 July 1740