Science: The Fertile Sahara

Some 10,000 years ago, when glaciers chilled northern Europe, the Sahara desert was a fertile, well-watered land. Among the most favored parts of it must have been the Tassili-N-Ajjer, a plateau about 900 miles southeast of Algiers. Today the region is one of the driest deserts on earth and almost uninhabited, but in prehistoric and early historic times it boiled with vigorous life. Last week French Anthropologist Henri Lhote was back in Algiers with proof of what Tassili-N-Ajjer (which means river plateau) was like while the rains still came.

Four Hundred Paintings. Dr. Lhote took four young painters to copy colored drawings...

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