about two o'clock
As for the dog , I feared I had lost him , but after a time he rejoined me , though how he contrived to do so I can not say . Nothing could be grander than the sight of this great river pent into a narrow compass , and occasionally becoming more like an immense waterfall than a river , but I was in continual fear of coming to more places where the water would be over the track , and perhaps of finding myself unable to get any farther . I therefore failed to enjoy what was really far the most impressive sight in its way that I had ever seen . `` Give me , '' I said to myself , `` the Thames at Richmond , '' and right thankful was I , when at about two o'clock I found that I was through the gorge and in a wide valley , the greater part of which , however , was still covered by the river . It was here that I heard for the first time the curious sound of boulders knocking against each other underneath the great body of water that kept rolling them round and round . I now halted , and lit a fire , for there was much dead scrub standing that had remained after the ground had been burned for the first time some years previously . I made myself some tea , and turned Doctor out for a couple of hours to feed .