Donkeys have, together with men, hitherto been supposed to enjoy a peculiar immunity from its attacks; but all I have to say, whether it was on account of their poor condition, or because the tsetse in those parts is more poisonous than usual, I do not know, but ours succumbed to its onslaught.

Fortunately, however, that was not till two months or so after the bites had been inflicted, when suddenly, after a two days' cold rain, they all died, and on removing the skins of several of them I found the long yellow streaks upon the flesh which are characteristic of death from bites from the tsetse, marking the spot where the insect had inserted his proboscis.
On emerging from the great Elgumi forest, we, still steering northwards, in accordance with the information Mr Mackenzie had collected from the unfortunate wanderer who reached him only to die so tragically, struck the base in due course of the large lake, called Laga by the natives, which is about fifty miles long by twenty broad, and of which, it may be remembered, he made mention.

Thence we pushed on nearly a month's journey over great rolling uplands, something like those in the Transvaal, but diversified by patches of bush country.
All this time we were continually ascending at the rate of about one hundred feet every ten miles.

Indeed the country was on a slope which appeared to terminate at a mass of snow-tipped mountains, for which we were steering, and where we learnt the second lake of which the wanderer had spoken as the lake without a bottom was situated.

At length we arrived there, and, having ascertained that there _was_ a large lake on top of the mountains, ascended three thousand feet more till we came to a precipitous cliff or edge, to find a great sheet of water some twenty miles square lying fifteen hundred feet below us, and evidently occupying an extinct volcanic crater or craters of vast extent.