Letter listing for 1770–1779
- Thomas Gray to James Beattie, 8 March 1771
- Voltaire [François Marie Arouet] to Charles Marie de La Condamine, 8 March 1771
- Voltaire [François Marie Arouet] to Jeanne Grâce Bosc Du Bouchet, comtesse d’Argental, 9 March 1771
- Voltaire [François Marie Arouet] to Gaspard Henry Schérer, 9 March 1771
- Gustavus III, king of Sweden to Charles XIII, king of Sweden, 10 March 1771
- Frederick William II, king of Prussia to Voltaire [François Marie Arouet], 10 March 1771
- Marie Anne de Vichy-Chamrond, marquise Du Deffand [née de Vichy] to Horace Walpole, 4th earl of Orford, 10 March 1771
- Voltaire [François Marie Arouet] to Mathieu Henry Marchant de La Houlière, 10 March 1771
- Gustavus III, king of Sweden to Greve Nils Adam Bielke, 11 March 1771
- Étienne François de Choiseul-Stainville, duc de Choiseul to Marie Anne de Vichy-Chamrond, marquise Du Deffand [née de Vichy], 11 March 1771
- David Hume to William Strahan, 11 March 1771
- Adam Smith to John Davidson, 11 March 1771
- Voltaire [François Marie Arouet] to Charles Augustin Feriol, comte d’Argental, 11 March 1771
- Voltaire [François Marie Arouet] to Maréchal Louis François Armand de Vignerot du Plessis, 3rd duc de Richelieu, 11 March 1771
- conte Giuseppe Gorani to Cesare Bonesana, marchese di Beccaria, 12 March 1771