By Yesterday Afternoon's Mail.
Action upon Lake Ontario. -- On Sunday the 19th inst. at 9 A.M. the Royal George, the Prince Regent and two brigs, entered Sackets Harbor, came within one and a half mile of the town and commenced an attack - and continued the cannonade about one hour, during which time one ball only (a 32 pounder) reached the shore. The brig Oneida lay in shore, all her guns were unshipped and with two nine's mounted upon a redoubt thrown up on Friday and Saturday preceding by order of Maj. Gen. Van Rensselaer. Two shot from the nine's hulled the Royal George - and one shot carried away the foretop gallant mast of the Prince Regent, when the British squadron bore away.
The British squadron had captured a revenue cutter, and sent the men ashore, with a message that unless the brig which had been taken by Capt. Woolsey was immediately restored they would burn the town. - Albany Gazette,of July 23.