The physiography of the river Nile and is basin . fan, and Gondokoroon the Bahr-el-Jebel, to the Mediterranean. The geography of the basin is now known with considerable accu-racy, and reliable maps of almost the whole of the Sudan are alreadypublished, as well as of much of Abyssinia; Junkers and Schweinfurthswork in the Bahr-el-Ghazal was added to by the Marchand exj)e(lition,and recently the numerous surveys and reports of the officers of theEgyptian Ai-niy have largely increased our knowledge of this ]) the uj)per reaches and tributaries of the Bahr-el-Arab little is yetknown, and ev
The physiography of the river Nile and is basin . fan, and Gondokoroon the Bahr-el-Jebel, to the Mediterranean. The geography of the basin is now known with considerable accu-racy, and reliable maps of almost the whole of the Sudan are alreadypublished, as well as of much of Abyssinia; Junkers and Schweinfurthswork in the Bahr-el-Ghazal was added to by the Marchand exj)e(lition,and recently the numerous surveys and reports of the officers of theEgyptian Ai-niy have largely increased our knowledge of this ]) the uj)per reaches and tributaries of the Bahr-el-Arab little is yetknown, and even with Emin Pashas journevs to the east and south-east of Gondokoro ami Wadelai, supplemented by the exjjeditions ofColonel Macdonald, Dr. Donaldson Smith, Comte Bourg de Bozasand others, there is still much to be learned about the northern partof the great lake plateau. Uganda, and the districts which border it,are known in their broader features, and their lake and river systemshave been examined. From the point of view of the Nile sujiply it. I i Survey Pept. Cairo i^ MEAN MONTHLY RAINFALL
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectwatersupply, bookyear
