126 Proceedings of the Royal Society 
In this attempt to reach Ujiji, Livingstone appears to have in- 
tended to reach the west side of the Tanganyika by the road which 
Captain Speke reported from Warruwa (evidently the Rua of 
Livingstone) to the ferry by which he had crossed from Ujiji ; and 
it was apparently during this attempt that Livingstone obtained, 
by actual observation, the report which he gives of the lower course 
of the Luapula. He says — “ On leaving Moero at its northern end, 
by a rent in the mountains of Rua, the river takes the name of Lua- 
laba, and passing on north-north-west forms Ulenge in the country 
west of Tanganyika. I have only seen it where it leaves Moero, 
and where it comes out of the crack in the mountains of Rua.” 
The flat inundated country beyond this point seems to have been 
his turning-point. He says — “ To give an idea of the inundation 
which, in a small way, enacts the part of the Nile lower down, I 
had to cross two rivulets, which flow into the north end of Moero — 
one, the Luo, had covered a plain abreast of Moero, so that the 
water on a great part reached from the knees to the upper part of 
the chest. The plain was of black mud, with grass higher than 
our heads. We had to follow the path which the feet of passengers 
had worn into deep ruts. Into these places we every now and then 
plunged, and fell over the ankles into soft mud, while hundreds 
of bubbles rushed up, and bursting emitted a frightful odour.” 
Having returned to Cazembe’s in about February or March of 
1868, Livingstone seems to have gone south at the beginning of 
the dry season, to Lake Bangweolo, from which his letter is dated 
in July 1868. 
The next news we have of the great traveller is in a letter from 
Ujiji, on Lake Tanganyika, dated May 1869. He appears to have 
reached this point by the eastern side of Tanganyika, not by the 
western as before attempted ; since he writes in the above letter, u As 
to the work to be done by me, it is only to connect the sources 
which I discovered from 500 to 700 miles south of Speke and 
Baker’s, with their Nile. The volume of water which flows north 
from latitude 12° S., is so large, that I suspect I have been working 
at the sources of the Congo as well as those of the Nile. I have 
to go down the eastern line of drainage to Baker’s turning-point. 
Tanganyika and Nyige Chowambe (Baker’s?) are one water, and the 
head of it is 300 miles south of this. The western and central 
