The violin, it is well known, is one of the most difficult instruments to finger. A patent has been granted to Jackson Gorham, of Bairdstown, Ga., for a device consisting of four fingers, which press the string on to the finger-hoard in any desired place ; so that ordinary performers will be able to execute music in any key, fingering only in those keys on which the great mass of performers play, viz., the keys of one, two and three sharps.