Dry Crossings of the Nile

Abstract

I HAVE read with interest Dr. Wayland's letter on the subject of a natural bridge over the Nile some eleven miles below Nimule. Unfortunately, I had not seen his note in the Uganda Journal when I wrote my review of Dr. Ludwig's book or I should have realized that ” A natural bridge has grown at Nimule, such as hardly another river on earth possesses in this form, consisting of rank water plants, so strong that it bears the elephant from one bank to the other, and so powerfully rooted that when floods have destroyed it, it closes up again of itself” was merely an inaccurate way of describing a sudd block, and did not relate to some entirely new phenomenon of vegetative growth.