progress was exceedingly slow. We at last reached the bottom of a narrow gorge, through which a mountain torrent came down with considerable force. From this point to the summit of Gunong Bubu, our road had to be cut through the jungle. After wading along the stream to find a convenient point for climbing the next spar or ridge, we crossed it, having difficult and slow climbing both in ascending and descending. The forest was a close jungle of rattans and saplings, with an undergroth of ferns which completely closed us in above and around. A second spur, still higher than the first, was ascended, but on its ridge we found the jungle in a slight degree more open, so we continued along it. It ascended slowly. In about two miles, finding that it was taking us too. much out of our course, we left the ridge and crossed another spur which was very steep, rendering it necessary to proceed by a series of long zigzags. Rested in the furthest valley, and then mounted another ridge higher and steeper than any we had previously climbed. On the edge, we found an old rhinoceros beat, which we followed, ascending for about a mile, where it terminated on the summit of an almost precipitous bluff. The rain was so heavy at this point, that we had to wait till it ceased before we could descend. This was no easy matter, and occupied until nearly sunset in bringing down our baggage. In the valley, we found a branch of the Kenas River making a pretty cascade over large granite boulders. Here we built nice little sheds which the large-leaved Pinanga palm enabled us to thatch comfortably.
May 21.—We left our encampment about 7.30, following the stream until it joined the Kenas River. Near this we found a species of Helicia, which is the second proteaccous plant we have noticed in Perak. We also found a splendid species of Fagraea, probably F. auriculata, with large fragrant
