(World) World Energy cascade mountains to the Colorado-Kansas border

to the Colorado-Kansas border

as well as the lowest point

Condition is good with close margins and a top border with a small nick of loss

Condition is good with some age toning to the folds

The OPA Mining Co

(World) World Energy cascade mountains to the Colorado-Kansas border(World) World Energy, R. Buckminster Fuller, 1939It's an interesting line to be drawn at the time. Here, Fuller wastes no time in showing the geographic differences between "human beings" and "inanimate energy slaves". "Their number is estimated by dividing total energy consumed by industrial man from mineral sources and waterpower, by the energy output of one human per year". While red dots that identify "slaves" are concentrated in North America and