The proceedings of a general court martial on the trial of Captain John Garthwaite, of the Sussex Regiment of Militia : on which a plea in bar was substantiated against the third charge, which was founded on an accidental omission which had been passed over, and an acquittal confirmed upon the fourth charge, which was brought as an additional charge, arising out of an unwarrantable stretch of power in Lt. Col. Newbfry, in order Capt. Garthwaite to withdraw from a ball-room, while under an arrest at large.