Letter listing for 1770–1779
- Jean Jacques Rousseau to Julie Anne Marie Boy de La Tour [née Roguin], 20 July 1771
- Voltaire [François Marie Arouet] to Maréchal Louis François Armand de Vignerot du Plessis, 3rd duc de Richelieu, 20 July 1771
- Claude Adrien Helvétius to père Martin Lefebvre de La Roche, abbé de La Roche, after 21 July 1771
- Voltaire [François Marie Arouet] to Maréchal Louis François Armand de Vignerot du Plessis, 3rd duc de Richelieu, 21 July 1771
- Pierre Michel Hennin to Jacques Henri Bernardin de Saint-Pierre, 22 July 1771
- David Hume to William Strahan, 22 July 1771
- William Nelson to Wills Hill, 1st earl of Hillsborough, 22 July 1771
- Voltaire [François Marie Arouet] to Marc Antoine Louis Claret de La Tourrette, 23 July 1771
- Reverend Doctor James Brown to Doctor Thomas Wharton, 24 July 1771
- Simon Taylor to Chaloner Arcedeckne, 24 July 1771
- Frederick II, king of Prussia [the Great] to Jean Le Rond d’Alembert, 25 July 1771
- François Arthus Timoléon de Cossé, comte de Cossé to Jean Jacques Rousseau, 25 July 1771
- Jean Jacques Rousseau to François Arthus Timoléon de Cossé, comte de Cossé, 25 July 1771
- Voltaire [François Marie Arouet] to Jacques de Rochefort d’Ally, chevalier de Rochefort d’Ally, 25 July 1771
- Reverend Doctor James Brown to Reverend Norton Nicholls, 26 July 1771
