Lake Bangweolo or Bemba, afterwards trending off again south of the same lake to enclose lakes Nyassa and Shirwa (see Keith Johnstone's Map of Livingstone's discoveries). The high plateau of Lobisa, where the river Chambezi probably takes its rise, may on this view be considered as belonging to the same system. But there are north and south coast ranges inosculating with these latitudinal mountains—while possibly neither Abyssinian highlands on the one hand, nor heights enclosing Albert Nyanza on the other, ought to be regarded as cut off from them. Where Livingstone's "four fountains of Herodotus" (which he was so keen to find) are, seems indeed to be still a moot point—like most matters connected with Central African geography.
2. Livingstone's discoveries remarkably confirmed Sir R. Murchison's theories as to the geological condition of South Afirica—for he found no evidences of marine formations, which would be found if the land had been submerged, as other continents have been, since the oldest secondary era of geologists. In his books may be read his statements of fact, and his inferences on these matters. The great lakes that, at the time of the deposition of the oldest secondary strata, were much larger than at present, have been let out, he
