The physiography of the river Nile and is basin . o -o .. r — , — definitely that otliors do not exist. Mueli exiiniiimtion of all thisdistrict remains to l)e done, and it ^vill not be until the geographicalcniiditions and the recent geogra[)hical development of this part hasbeen carefully studied on the spot that we may h(Ji)e to trace the causeswhicli have determined tlie great curve of the ri\er between AbuHaiued and Dongola. In the reach from Khartoum to Aswan the Nile attains its greatestvolume as here are collected the waters of the Blue and White Niles andthe Atbara, while evaj)orat
The physiography of the river Nile and is basin . o -o .. r — , — definitely that otliors do not exist. Mueli exiiniiimtion of all thisdistrict remains to l)e done, and it ^vill not be until the geographicalcniiditions and the recent geogra[)hical development of this part hasbeen carefully studied on the spot that we may h(Ji)e to trace the causeswhicli have determined tlie great curve of the ri\er between AbuHaiued and Dongola. In the reach from Khartoum to Aswan the Nile attains its greatestvolume as here are collected the waters of the Blue and White Niles andthe Atbara, while evaj)oration and absorption have not yet materiiillydiminished them. For a few days only at lowest stage in dry yearswiien the Blue Nile is supplying almost nothing, the point where thereis the maxinuim volume in the river is perhaps innuediately below theSobat mouth. We liave seen that the Blue Nile and the Atbara in their up])erreaches have eroded their valleys through the (j\-erlying l)asalt andsandstone until they now How througli channels cut in the old
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectwatersupply, bookyear
