Melancholy Accident.βOn YVednes-j day week, whilst a nrgro man named; Jim, belonging to Col. W. II. Spicknull, of Calvert county, Md., was employed in feeding the threshing-machine, the cylinder burst with tremendous violence, throwing fragments of iron and wood to! the distance of 25 yards from the threshing-machine. A piece of wood struck Jim on the forehead, shivering the skull frotn the right eye bone to the top of the head. He revived in an hour or two,great pain until Fridayexpired.and lingered in night, when he