September 21.--We had another long stage to-day of twenty miles, over, if possible, a worse road than yesterday, no intermission whatever of the heavy steep sandy ridges and dense eucalyptus scrub; the horses were dreadfully jaded, and we were obliged to relieve them by yoking up all the riding horses that would draw. Even with this aid we did not get the journey over until an hour and a half after dark. During the day our course had been more to the northward of east, and brought us close under the Gawler range. At fourteen miles after starting, we passed a salt lake on our right, and several salt ponds on our left; but we could find no permanent fresh water anywhere. In the rocks of the range we had encamped under, we procured a small quantity left by the rains, but this supply was rapidly disappearing under the rays of a very hot sun, and had we been a few days later, we could not have crossed at all. The latitude of our camp was 32 degrees 41 minutes 40 seconds S. September 22.--This morning I ascended one of the heights in the Gawler range, from which the view is extensive to the southward, over a generally low level country, with occasional elevations at intervals; to the north the view is obstructed by the Gawler range, consisting apparently of a succession of detached ridges high and rocky, and entirely of a porphoritic granite lying in huge bare masses upon the surface. The hills [Note 21 at end of para.] were without either timber or shrubs, and very barren, with their front slopes exceedingly steep, and covered by small loose stones; several salt lakes were seen in various directions, but no indications of fresh water or springs. [Note 21: Peron's description of the mountains on the South-western coast, is singularly applicable to the Gawler range--He says, Tom. III. p. 233. "Sur ces montagnes pelees on ne voit pas un arbre, pas un arbriseau, pas un arbuste; rien, en un mot, qui puisse faire souponner l'existence de queque terre vegetale. La durete du roc paroit braver ici tous les efforts de la nature, et resister a ces memes moyens de decomposition qu' elle emploie ailleurs avec tant de succes."] It was late before the party moved on to-day, but the road was somewhat better, and there were many intervals of open grassy plains under the hills along which we travelled, at a course of E. 17 degrees N. for twenty-five miles. Encamping at night with tolerable grass, but without water. There had been a considerable pool of rain water here a few days ago, but it was now nearly dried up by the sun, and I was obliged to order the horses to be watched during the night.