1From Benjamin Franklin to Octavie Guichard Durey de Meinières, 23 April 1780 (Franklin Papers)
AL : American Philosophical Society It is certain that Mr. Franklin has promised Madame Helvetius...
2From Benjamin Franklin to Madame Durey de Meinières, 31 August 1783 (Franklin Papers)
ALS : Yale University Library I send with great Pleasure the Constitutions of America to my dear...
3From Benjamin Franklin to [Madame Durey de Meinières], 12 September 1783 (Franklin Papers)
ALS : American Philosophical Society My Friend Made [Madame] Helvetius tells me that I do wrong...