A letter from a country gentleman, to a member of Parliament, on the present state of public affairs : in which the object of the contending parties, and the following characters are particularly considered : the Dukes of Norfolk, Portland and Northumberland ; the Houses of Devonshire, and Russel ; the Lords Thurlow, Loughborough, and North ; Mr. Pitt, Mr. Fox, Mr. Burke, Mr. Sheridan ; Mrs. Fitzherbert and His Royal Highness the Prince of Wales