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Carruthers, Douglas Unknown Mongolia. A Record of Travel and Exploration in North-West Mongolia and Dzungaria. With three Chapters on Sport by J.H. Miller and a foreword by the Right Hon. Earl Curzon of Kedleston. London: Hutchinson 1914
Second edition Two volumes, pp.xviii, 318; x, (319)-659, 168 illustrations, panoramas and diagrams, of which 14 folding, 6 maps, of which 4 folding. Page 75 torn without loss, a little light foxing, mostly marginal. A very good set in lightly worn original cloth.

Carruthers took part in a two-year expedition covering 5,000 miles to explore sources of the Yenisei river, one of the longest rivers in Asia. His account is of great value not only for its geographical researches, but also for the description of the last indigenous tribes of Siberia. Their route took the expedition to Kuldja, over the Tian-Shan into Chinese Turkestan. Carruthers was awarded the gold medal of the Royal Geographical Society for his part in the expedition.