Wonder Dog ringing a door bell.[1]

A bell was basically a type of musical instrument that made a buzzing or ringing sound.

They were used for a variety of purposes, such as for doors, which alerted people that a visitor was trying to come inside or see if someone was home.

Other bells were used for alarm systems, church ceremonies, and for other things. School students also knew that class was in session or over when the bell rang.



There was a bell on the door of Doctor LeBon's Galaxy Observatory. Wonder Dog rang it with his paw.[2]

Known Bells


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