... *. LONDON, July 12. Late lafl Night a Mellcngcr arrived at th*c Secretary of State's Ollicc from our Army on the Main, which h left the c h Inft. OS. and brings certain Advice that Marfhal repafled the Rhine, and that the Army of the Allies were preparing to follow them as foon as Prince Charles came up, which would be in a few Days, being within two DaJ, March of the Neckar. Gen. Ev. Poft. ...