CHAPTER XII. THE OPENING OF THE ATLANTA CAMPAIGN."Officer nothin'. You can't play that on us," said Si. "Halt, there, boys, and stand fast.""Very well," answered the Deacon a little stiffly, for he was on his guard against cordial strangers.It was late in the afternoon when the Herd-Boss said:"Hello, Corporal," said Pete, with a capacious grin rifting the powder grime on his face. "We've just bin having lots o' fun."