... MVAiKEUT7Y NJRAtLI). QORY EXC11ANoc. Monday, BMarchl 20, 18011. Our fupply of Wheat to-day was rather confiderabP' and its quality, with a few exceptions, not gf the belt. In price, thc Fine declined aibot 2s. per quarter, and the other ftrns rather more.-We had a goodl quantity of Barley, and the Fine obtdttted lalt Mloaday's terms.- Malt is down a tnifle.-WIite Peafe were liken ire feer. ...