The Anglo-Egyptian Sudan: a compendium prepared by officers of the Sudan government, Vol. 1 (of 2) — (iv.)—NAVIGABILITY (UP STREAM).

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The Anglo-Egyptian Sudan: a compendium prepared by officers of the Sudan government, Vol. 1 (of 2) Volume 1 of 2 · (iv.)—NAVIGABILITY (UP STREAM). · ch 34/194

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