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Scientific American 1928-07

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Farm tractor in vast field, doing something to cultivate the land and rows of flowering plants. Content: "Growing Our Own Rubber," by D. T. MacDougal, "Ancient Man in America," and "The Great Siberian Meteorite."



Artist: Howard V. Brown

Source: Steve Kirch, collector, and creator of a great website about SCIENTIFIC AMERICAN in the past

Restoration by: magscanner