PESHTIGO HOMICIDE.-- A week ago, on board the bark Peshtigo, while she was lying a short distance from the mouth of the harbor of Chicago, a most terrible and fatal affray with knives took place between Patrick McCambridge, the mate of the vessel, and William Moor, one of the sailors, resulting in the immediate death of the former, and serious, if not fatal injury of the other. The wound which caused the death of McCambridge was six inches long, and passed through the heart. At the point where it entered the heart the wound was one and a half inches in width, at the point where it passed out on the other side was half an inch in width. There were inflicted upon Moor's back, breast and neck 27 deep cuts, besides several small cuts. The deceased was a desperate character when in liquor, in which condition he was at the time of this affray. The coroner's jury, at the inquest, gave as their verdict "justifiable homicide."