GB 0402 BTH
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1930-1940
Papers of Bertram Sidney Thomas, 1930-1940, including lists and notes on observations made during his expedition to southern Arabia, 1930: appendices to article by Thomas, 'A Journey into Rub' Al Khali: The Southern Arabian Desert', The Geographical Journal, Vol. 77, No. 1 (Jan, 1931), pp. 1-31; and astronomical observations, Arabia, 1930-1931.
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