The following account is given us by a gentleman of veracity, that came passenger on board the Catherine, and is just arrived here from Martinique.

On Friday, May 30th, the brigt. Catherine, Roger Scallion, master, from Dublin, bound to Antigua, being about 40 leagues to windward of it, was taken by the American privateer sloop the Fly, Thomas Palmer Commander, carrying 14 guns, four pounders; 20 swivels, 104 men, 50 of whom were employed as marines, and only five out of the whole that could speak English, the rest mostly French. As soon as the privateer's men had boarded us, they, notwithstanding Capt. Palmer's fallacious promises, stripped and rifled every person on board, breaking open trunks and chests, and left us with only what we had on our backs, and in the most cowardly manner threatening our lives. On the Sunday following they brought us into St. Pierre's, Martinique, where they put Capt. Scallion, his officers and passengers on board a pettyaugre, and sent us to Dominico, detaining at the same time the crew, to inveigle them on board their privateers.

When we were sent away, the Rattlesnake lay at St. Pierre's with four other Rebel privateers, fitting out for new expeditions.

The day following the brig Betty, Capt. Darcy, from Dublin to Antigua, was taken by the Fly privateer.

And on Monday the 2d of June she took the ship Elizabeth, Captain Byrne, from Liverpool to Jamaica, who made a gallant defence, had four of his men killed, and 12 wounded. After he had struck, they cut and mangled him in the most cruel manner.