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crossing place to evade their pursuers by gaining the other.
Three-quarters of a mile from the last stream, in a north direction, I observed the eastern of the two middle hummocks of Porrongurup N. 334° 45', and the summit of the eastern shoulder of the gorge 339° 30'. A quarter of a mile further, in the same direction, we came to the Kalgan, and having continued in its general direction N.N.E. two miles and a half, crossing some small streams, we arrived on a slope of dark gravelly soil. About two miles further, observing an occasionally deviating course N.N.E., I obtained a sufficiently clear view to ascertain that the eastern gorge of Porrongurup bore 315°, the eastern hummock 313°, and the northern summit, now seen standing out from the rest of the mountains, 310°. A sixth of a mile further I could see the Kalgan valley serpentining with gentle bends for about three miles N.219° 30' E., and then apparently three points more easterly. I looked in vain for some hill in the vicinity of the Sound. The atmosphere not only being very hazy but thickened with the smoke of native fires, we now descended half a mile obliquely to lunch on the bank of the river at half-past 1, at a place where we saw the droppings of horned cattle, and where 1 found a granite rock having garnets embedded. Five minutes' walk from this we entered upon the fertile slope of three quarters of a mile, I described in my former excurnon, on the 28th April, 1831, and found its extent still greater than I then observed. The river, at its northern boundary, makes a sudden bend to the eastward, which I ascertained more exactly to be N. 299° 15', whilst from the same station C, the eastern Summit of the gorge of Porrongurup bore 306°, and the western summit
