Restless Spirits from Japanese Noh Plays of the Fourth GroupThe "fourth group Noh," so designated because they are performed fourth in a formal five Noh program, includes almost one hundred plays, and is a group of great variety: some plays are supernatural or visional, others realistic; their leading characters include deities, demons, ghosts, mad people, samurai, and street artists. Dividing them into nine sub groups, the author fully analyses their dramatic characteristics. Includes translations of four Noh