The Chicago Tribune’s Washington correspondent writes of life in Chicago: “Murders, assaults, garrotings, and robberies are of daily occurrence here. Recently Gen. Pope bad his pocket picked of $1,000 in an oyster saloon. Lt. Graham of the 2d Vermont cavalry was found in his hotel bedroom with his throat cut, and it is thought that he was murdered. A lady was badly wounded by the accidental discharge of a pistol in a public saloon last night Be- cause of the of the police force, those who are obliged to be in the streets after dark go armed. Unless hn- mediate steps are taken by the authorities, the citizens will act in self-. A . is already talked of.”