Katomba supplied me liberally with nyumbo; and, but for a slightly medicinal taste, which is got rid of by boiling in two waters, this vegetable would be equal to English potatoes.
_11th February, 1870._--First of all it was proposed to go off to the Lualaba in the north-west, in order to procure _Holcus sorghum_ or dura flour, that being, in Arab opinion, nearly equal to wheat, or as they say "heating," while the maize flour we were obliged to use was cold or cooling.
_13th February, 1870._--I was too ill to go through mud waist deep, so I allowed Mohamad (who was suffering much) to go away alone in search of ivory.

As stated above, shelter and nyumbo proved beneficial.
_22nd February, 1870._--Falls between Vira and Baker's Water seen by Wanyamwezi.

This confirms my conjecture on finding Lualaba at a lower level than Tanganyika.

Bin Habib went to fight the Batusi, but they were too strong, and he turned.
_1st March, 1870._--Visited my Arab friends in their camp for the first time to-day.

This is Kasessa's country, and the camp is situated between two strong rivulets, while Mamohela is the native name, Mount Bombola stands two miles from it north, and Mount Bolunkela is north-east the same distance.