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Scientific American, Vol. 101, No. 11 (September 1909) (1909)

leaf 4

An illustration from Scientific American, Vol. 101, No. 11 (September 1909), 1909, leaf 4
ly used to separate the growth, as it The actual head of navigation of the Nile River is the top growth, consisting mostly of papyrus. A curi- cannot be removed in any other way. The vessels considered as at the town of Gondokoro, for the rea- ous and unexplained fact noted by the engineers is… … such animals as the elephant, even the hippopotamus, Section of upper Nile, showing channel nearly filled with sudd. have been seen to go across it, and without breaking through the matted roots, branches, and leaves. In short, the rapidity with which the sudd spreads over spreads along what is…

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