Édouard Linant de Bellefonds, the Belgian official in Gordon’s employment of whom mention was made in the previous chapter, and who had met his death at the hands of the Bari, was avenged by the American C. Chaillé-Long, who inflicted severe chastisement on the Bari and allied tribes at and around Gondokoro. Chaillé-Long was made a colonel by the Egyptian government. He was despatched by Gordon on a mission to Uganda to spy out the land; but owing to the intervention of Sir John Kirk from Zanzibar, the British government stayed the ambitious Khedive from attempting to include Uganda in the Egyptian Sudan. Chaillé-Long added a little to our knowledge of the Victoria Nile, and gave a more detailed report of Lake Kioga than had been previously gleaned from the unscientific journey of Piaggia. He named this lake “Ibrahim.” Chaillé-Long also travelled to the west of the Mountain Nile in the Nyam-nyam countries. His book (“Central Africa: Naked Truths of Naked People”) is unfortunately marred by much incorrect information, and by the erroneous spelling of native names. Mutesa, the ruler of Uganda, is disguised as “M’tse;” Uganda becomes Ugunda, while preposterous plurals are invented for the people of Uganda and Unyoro, who are called the Ugundi, Unyori, etc. Chaillé-Long’s one practical contribution to Nile exploration was the definite discovery of Lake Kioga, which had only been hesitatingly reported by the unlearned Piaggia. Ernst Marno, the Viennese, surveyed a good deal of country west of Lado and the Mountain Nile,--the valley of the Yei among other rivers. Casati, an Italian officer, journeyed all over the lands of the Egyptian Sudan; but as he was an unscientific observer and lost all his journals in the troubles that followed on the Mahdi’s revolt, his contributions to our knowledge of the Nile regions are practically worthless.