trouble to get out of it, after passing two hours in candle-light. It may thus be imagined what a vast field for such interesting researches remains still unexplored in that district where limestone occurs in such abundance. The objects of my journey did not admit of further indulgence in the pursuit at that time; and I was content with drawing the attention of one of the party, a young gentleman residing in the neighbourhood, to it, in hopes he might discover some bones of importance.* (*Footnote. See a further account of these caves and some others in Chapter 3.15 below.) MOUNT GRANARD, FIRST POINT TO BE ATTAINED. March 19. Our stores being completed we proceeded along the course of the little rivulet of Buree, towards the Lachlan. My first object was to gain Mount Granard, described by Mr. Oxley as the most elevated pic of a very high range, and laid down on his map to the westward of where the Lachlan takes a remarkable turn from its general direction towards the low country more to the southward. I had long thought that it might be possible to ascertain from this hill whether any range extended westward of sufficient magnitude to separate the basins of the Murray and the Darling. I wished to visit it last year, but the loss of Mr. Cunningham, the consequent delay of the party, and the adverse nature of my instructions in regard to my own views, together prevented me. I then saw that the hills along the line I was now about to follow were favourable for triangulation; but the greater certainty of finding water in a large river like the Lachlan was my chief inducement for now moving towards its banks, as the season was of such unusual drought. On this day's journey I took for my guidance the bearing of a line drawn on the map from Buree, as fixed by my former survey, to the mouth of Byrne's creek, as laid down by Mr. Oxley; and which I supposed to be the same as that which descends from Buree. HALT ON A DRY CREEK. The line guided me tolerably well to where I encamped that night. This was on a fine-looking plain, within sight of the wooded banks of the creek; but, on examining the bed of the latter, I could find no water, although I followed it two miles down. There I arrived at a cattle station named Toogang, where there was water. It was nothing to the old hands of the Darling to go only TWO miles for water. We suffered no inconvenience from this; but it was deplorable to see the bed of what must in some seasons be a fine little stream so completely dry and dusty. This day we met with a new species of Psoralea.* At the camp I ascertained the magnetic variation to be 9 degrees 10 minutes 15 seconds East, by an observation of the star Beta Centauri.