... LONDON MAIUKETS. C61o6 EXCHANGE, MONDAY, MAY I2. Our expeibations, founded on the finenefs of the wea- ther, and the extent of the Foreign Supply, have been folly jutified, as Foreign Wheats have this day fallen -from 7s. to sos. and Englifh ones full Gs. per quarter, fince this day week.-Barley, both of a fine quality, and alfo the inferior defcriptlins, have fullained a redudiois of from 3s. ...