. Franklin is referring to his letter of 22 Sept. 1778 to C. W. F. Dumas, for which
no recipient's copy has been found. Dumas met with Pieter van Bleiswyck on 22 Oct.
1778 and gave the Grand Pensionary an extract from Franklin's letter. Dumas described
his meeting with van Bleiswyck in his letter to the Commissioners of 30 Oct. 1778
, and included the passage from Franklin's letter (vol. 7:179–184; see, in particular,