The Field Museum
Field Museum: Exhibits: Evolving Planet: Carboniferous
Explore this impressive compilation of scientific research focused on the Carboniferous Period in the late Paleozoic Era.
Art Cyclopedia
Artcyclopedia: John Singleton Copely
This site lists museums, galleries, image archives, and web sites online which exhibit John Singleton Copely's art. A few periodical articles are also included.