Charles Lutwidge reports to the Treasury Lords on changes in vessel numbers and tonnage trading to/from the Isle of Man since the Crown's purchase in 1765. He distinguishes foreign trade (East Indian commodities, spirits, silks, wine, tobacco) from trade with Great Britain and Ireland, documenting the decline of legitimate Manx merchant vessels and the shift of smuggling operations to Irish wherries and French bases. The report provides quantitative data on vessel types and numbers engaged in both lawful and illicit trade.