The Defence Brigantine of War, belonging to this State, of 4 Six Pounders, and 10 Fours, commanded by Thomas Pickerin, Esq; which sailed on a Cruize from hence the 31st of March last, soon after fell in with and was taken by the Enemy's Frigates, Roebuck of 44 Guns, and Perseus of 20. The Intelligence comes in a Letter to Congress, from Capt. Pickerin himself, dated on board the Perseus, off Cape Henlopen, the 9th of April. ー To prevent any of our Vessels being decoyed by the said Brig, should she be employed to cruize this Way, the following Description of her is given, viz. The Length of her Keel is about 60 Feet; she has a Quarter Deck, no Head; her Sides were painted black, her bottom white; her Stern is remarkably narrow, Sheer very good, and Bow very round; She was full rigged and well fitted, with Crosstie Fittings and Waste-Cloths; she had 16 Ports, which lift up, and were painted a bright red; her Masts were very taunt, especially the Top-gallant Masts, and her Top-gallant Sails and Royals very square; the Tauntness of her Masts, and the Main-mast being stept far aft; makes her appear rather short; and the best of her Sailing is large ー she sails but indifferently upon a Wind, and worst close-hawl.