Letter listing for 1770–1779
- Voltaire [François Marie Arouet] to Catherine II, czarina of Russia [the Great], 25 July 1777
- Voltaire [François Marie Arouet] to Frederick II, king of Prussia [the Great], c. 25 July 1777
- Giovanni Cristofano Amaduzzi to Corilla Olimpica [Maria Maddelena Morelli Fernandez], 26 July 1777
- Ignatius Sancho to John Meheux, 27 July 1777
- Marie Anne de Vichy-Chamrond, marquise Du Deffand [née de Vichy] to Horace Walpole, 4th earl of Orford, 27 July 1777
- James Boswell to Doctor Samuel Johnson, 28 July 1777
- Le Courier de l’Europe to [unknown], 29 July 1777
- Jeremy Bentham to Richard Clark, 29 July 1777
- Corilla Olimpica [Maria Maddelena Morelli Fernandez] to Giovanni Cristofano Amaduzzi, 29 July 1777
- Madeleine Catherine Delessert [née Boy de la Tour] to Jean André Deluc, 30 July 1777
- Voltaire [François Marie Arouet] to Catherine II, czarina of Russia [the Great], 1 August 1777
- Voltaire [François Marie Arouet] to Jean Baptiste Joseph Damarzit de Sahuguet, baron d’Espagnac, 1 August 1777
- Voltaire [François Marie Arouet] to Frederick II, landgrave of Hesse-Cassel, 1 August 1777
- Giovanni Cristofano Amaduzzi to Corilla Olimpica [Maria Maddelena Morelli Fernandez], 2 August 1777
- Corilla Olimpica [Maria Maddelena Morelli Fernandez] to Giovanni Cristofano Amaduzzi, 2 August 1777
