A Gentleman, who went to Martinico to claim two vessels, which had been carried in there by the rebels, returned a few days ago, and reported, with much accuracy, to Lord Maccartney, the reception he met with from the French Governor; who, saying it was a neutral port, would give no redress. He then applied to Mr. Bingham, the Agent for the Congress, who is treated with as much respect as the British Ambassador at Paris; and from him making purchase of the vessels, dispatched them with French papers and French masters. He saw 16 sail of privateers at anchor, mounting from 10 to 20 guns, and they had opened several rendezvouses for entering seamen. The Merchants make no secret of being concerned in this piratical business, and every encouragement is given to promote it, by the principal person. The mischief done to the West India islands by them is amazing.