This was an enclosure in Sir Stanier Porteen to Lord Weymouth, n.d. [ante 1778?], q.v.
JA transcribed this letter into his miscellany with other letters relating to the fisheries.
In his miscellany, he comments that he procured the copy in 1778 "I believe from Mr. Lee or Mr. Izzard." In his diary entry for 26 Nov. 1782 (D/JA/37.11), where he comments on this letter, he clarifies that it was from