The country presents the appearance of having been originally of sedimentary rocks, through which the granite has forced its way, upheaving the sandstone to an angle of 80°. With regard to the climate, I made a few notes. The plain and low hills are much the same as the rest of Borneo, or other tropical countries; but in the neighbourhood of Kina Balu it is of course different. We found at the village of Kiau that the thermometer never marked above 77° during the day, and varied from 66° to 69° during the nights. The mean of all the observations gave a shade below 68°. The Marei Parei spur offered a fine position for a sanitarium, at any height between 4,000 feet and 5,000 feet. Our tent was pitched at about 4,700 feet, and we found that the thermometer marked 75° (mean) in the midday shade, 56° at six A.M., and 63° (mean) at six P.M. This would be a delightful climate in a well-built house. The cave at 9,000 feet was very cold--at two P.M. 52° mean; and during the three nights I slept there on my first expedition, it was 40° 33´ (mean); ranging between 36° 5´ and 43°. In my last expedition, in the cave, the thermometer marked: 6.30 A.M., 43°; 9.15 A.M., 48°; 3·30 P.M., 51·250°; 6 P.M., 45·750°. Night, registering thermometer: 41·250° and 41°. On the summit, during mist and rain, it marked 52°; while exposed to a strong wind and a storm of sleet and hail, it fell to 43°. On a fine day, however, it marked 62° in the shade, there being much refraction from the rocks. I think it most probable that water would freeze on the summit during a similar storm of hail and sleet to which we were exposed, were it to occur during the night-time, as at two P.M. the thermometer fell to 43°, though held in the hand: and at the cave it fell to 36·5° during a very cold night, though partly protected by the tent, and when I went out, I found a sort of hoar-frost on the rocks and leaves. I must add a few remarks on the map. The sea-line is taken from the Admiralty chart, while the interior I have filled up from the observations and rough plans made during the journey. It may afford some idea of the country, and serve until a traveller with greater advantages makes a better.