...ag of truce here was but to get an opportunity to communicate surreptitiously with Uncle Sambo's spies in this city at this, to his cause, critical time. The impression prevailing around us, that President Lincoln will communicate the contents of the letter to Congress, is doubtless erroneous. Though we presume that it will be promptly despatched to the Governor of Virginia, at Wheeling, to whom a person usu...