chemical harmonicon

Singing \Sing"ing\,
   a. & n. from {Sing}, v.
   [1913 Webster]

   {Singing bird}. (Zool.)
   (a) Popularly, any bird that sings; a song bird.
   (b) Specifically, any one of the Oscines.

   {Singing book}, a book containing music for singing; a book
      of tunes.

   {Singing falcon} or {Singing hawk}. (Zool.) See {Chanting
      falcon}, under {Chanting}.

   {Singing fish} (Zool.), a California toadfish ({Porichthys
      porosissimus}), called also {midshipman}; -- so called
      because it produces a buzzing sound with its air bladder.
      

   {Singing flame} (Acoustics), a flame, as of hydrogen or coal
      gas, burning within a tube and so adjusted as to set the
      air within the tube in vibration, causing sound. The
      apparatus is called also {chemical harmonicon}.

   {Singing master}, a man who teaches vocal music.

   {Singing school}, a school in which persons are instructed in
      singing.
      [1913 Webster]