Milligan, Bowles and Horsey to be WtxoUOne of the editors of theSentinel, who is the correspondent of the Cincinnati Bnquirer and Chicago Times, telegraphs those papers, Tis:“I understand that Messrs. Milligan, Bowles and Horsey, recently on trial here before a Military Commission, have been sentenced to be shot to death by musketry.“Mr. Andrew Humphreys Is sentenced to imprisonment during the war. These findings hare been approved by Major General Morey, and now only await the signature of the President to be carried into execution.We hare no knowledge of the facta, Ibut do not suppose that the Sentinel man has guessedfar from right.