Proceedings of a General Court Martial held at the Horse-Guards, on the 24th and 27th of March, 1792, forthe trial of Capt. Richard Powell, Lieut. Christopher Seton, and Lieut. John Hall, ofthe 54th Regiment of Foot; on several charges preferred against them respectively by William Cobbett, late Serjeant-Major of the said Regiment; together with several curious letters which passed between the said William Cobbett and Sir Charles Gould, Judge-Advocate General; and various other documents connected therewith in the order of their dates