against a rushy bank, and had managed to scramble out with no more serious damage than a bruised shin. Eventually we arrived at the junction of the rivers and proceeded some way down the Sabaki, beside which the Tsavo looks very insignificant. Several islands are dotted about in mid-stream and are overgrown with tall reeds and rushes, in which hippo find capital covert all the year round. As with the Tsavo, the banks of the Sabaki are lined with trees of various kinds, affording most welcome shade from the heat of the sun: and skirting the river is a caravan road from the interior--still used, I believe, for smuggling slaves and ivory to the coast, where dhows are in readiness to convey them to Persia or Arabia. After an early dinner, which Mabruki soon got ready, I left my followers encamped in a safe boma a mile away from the river, and started out with Mahina to find a suitable tree, near a hippo "run", in which to spend the night. Having some difficulty in finding a likely spot, we crossed to the other side of the river--rather a risky thing to do on account of the number of crocodiles in it: we found a fairly shallow ford, however, and managed to get safely over. Here, on what was evidently an island during flood time, we found innumerable traces of both hippo and rhino--in fact the difficulty was to decide which track was the best and freshest. At length I picked out a tree close to the river and commanding a stretch of sand which was all flattened down and looked as if at least one hippo rolled there regularly every night.