...or can the signal-officers themselves read the message sent to them unless they have first had the countersign or key, given out daily. in the field, four miles South of Marietta, July 4, 1862. Marietta is ours; the valiant secesh who boastingly proclaimed that they would continue to hold the city at all hazards, have ignominiously abandoned their works around the Kenesaw, and at the present writing...