Martinsburgh Gazette

From Montreal.—We received this morning by the Steam Boat the Evening "Montreal Advertiser," of the 22d October. Excepting the following article it contains nothing interesting to an American reader. Several of its columns are taken up with the news from the British and American Commissioners at Ghent, brought by the Corvette John Adams.

MONTREAL, Oct. 22.

Letters from Kingston mention that our fleet left that harbor on Sunday last for the head of the lake, carrying a considerable reinforcement of troops, and a large supply of provisions for the relief of the right division of the army, which has for some time past, been rather straitened in their operations, for the want of supplies. The new ship St. Lawrence, has taken on board seven hundred barrels of pork, and twelve hundred men including Sailors—she is said to be a remarkable good sailer, and in every other respect surpasses the expectation of Sir James Yeo. Chauncey had gone into Sackett's Harbor, and we have once more an undisputed superiority of the lake which materially alters the complexion of affairs in the Upper Province, and will soon enable the right division of the army, to cope with our invaders upon more equal terms, and drive them upon their own shores.