Long-lost 1930s John Carter of Mars animation

Dwiff sez, "Here's an article - with color CLIPS!!! - on the aborted 1930's Bob Clampett animated adaptation of Edgar Rice Burroughs's John Carter of Mars. Looks like it would have given the Fleischer Superman a real run for its money."

Burroughs and Clampett wanted to make a serious since fiction adventure while the studios (in typical studio fashion that foreshadowed decades of missteps) wanted to make a sci-fi slapstick comedy. One is left wondering how Clampett's John Carter of Mars would have shaped the science fiction films to come. But take heart, Carter fans, for Pixar is picking up that torch!
Link (Thanks, Dwiff!)