SAHARA CHALLENGE.

8vo. 8.75 x 5.75 inches. 152 pp. Bound in original green cloth, gilt, in price clipped pictorial dust wrapper, which has edge wear, including chips at head and tail of spine. Some foxing of flyleaves and edges, scattered elsewhere; otherwise a very good copy. A few pencil notes. Illustrated by 43 black and white photographic plates, including frontispiece and by three maps in text, one double page. Decorated by publisher's device on title page. An account of the 1952-53 Sahara University Expedition expedition from Algiers to Mount Kilimanjaro to study the problems of desertification, the desert's encroachment on fertile land and of water supply, led by the author. Richard St. Barbe Baker (1889-1982) was a biologist, botanist, environmental activist and prolific author. He advocated world wide reforestation and was behind the founding of Men of the Trees (now the International Tree Foundation) in 1922. TRAVEL AFRICA TRAVEL BOTANY AFRICA 20TH CENTURY ILLUSTRATED TRAVEL.