Climber and Buddhist scholar Ian Baker's account of discovery, with a National Geographic-sponsored team, to the upper reaches of the Tsangpo Gorge in the heart of the Tibetan Himalayas. Before Baker's expedition, the gorge, a mystical sanctuary of Tibetan Buddhism, had not been explored since 1925, when the legendary plant collector Frank Kingdon-Ward pronounced the celebrated waterfall at the head of the gorge a myth. Baker found it! With an introduction by His Holiness the Dalai Lama. Baker has writen widely on Buddhism.  (TBT78, $16.00)