This Welle, or Wellemakua, river about which Stanley indulges in surmises, is the celebrated river brought into notice by Schweinfurth’s discoveries, and over which a geographical controversy raged for seventeen years. The question was whether it was the Shari river, which emptied into Lake Tchad, or whether its mysterious outlet was further south. Stanley’s last journey in search of Emin Pasha pretty definitely settled the controversy by ascertaining that the Welle is the upper course of the Mobangi, a tributary of the Congo. [Illustration: ORNAMENTED SMOKING-PIPE.] And while speaking of Schweinfurth, we must use him as authority to settle any misapprehension likely to arise respecting the nature of the dwarfs which Stanley encountered on the waters of the Upper Aruwimi. He calls them Monbuttus, thereby giving the impression that the tribe is one of dwarfs. It was Schweinfurth’s province to set at rest the long disputed question of the existence of a dwarf race in Central Africa. He proved, once for all, that Herodotus and Aristotle were not dealing with fables when they wrote of the pygmies of Central Africa. One day he suddenly found himself surrounded by what he conjectured was a crowd of impudent boys, who pointed their arrows at him, and whose manner betokened intentional disrespect. He soon learned that these hundreds of little fellows were veritable dwarfs, and were a part of the army of Munza, the great Monbuttu king. These are the now famous Akka, who, so far as we know, are the smallest of human beings. It is these same Akka who, wandering in the forest a little south of Schweinfurth’s route, picked off many a carrier in Stanley’s late expedition, using arrows whose points were covered with a deadly poison, and refusing all overtures of friendship.