To discover this secret, the blackfellow engaged in hot pursuit; and, as his eye must be constantly on the tiny insect, there would, of course, be frequent tripping, and many an awkward fall on mother earth, but the excitement was too great to permit of anything short of a serious accident being noticed. Another characteristic of the untutored savages was their unwillingness to recognize the right of a white man to hold property--it was all _meum_ and no _tuum_ with them. For a while Mitchell tried to satisfy them with liberal gifts, but giving only increased the craving for more; and, what was worse, this liberality on the part of the strangers began to be construed as an indication of fear, and then the demands were more impudently pressed than ever, which caused these gifts, very properly, to cease altogether. And now their thieving propensities broke out beyond all bounds. Mitchell, like Apollo when Mercury filched his bow, hardly knew whether to smile at the adroitness of the thief or wax indignant at the loss of his property. The cunning, craft, and success of these barbarians went almost beyond credence. Not only their hands were busy, but their very feet and toes picked up the strangers' tools as they walked over them. This latter practice was considered a real accomplishment, and these savages seemed to have a genuine contempt for the clumsy white-fellows who could not use their "feet fingers." Barring this troublesome propensity, the native tribes did not cause much inconvenience to the expedition until it got as far down the Darling as the Menindie quarter, where a serious embroglio occurred, which occasioned the shedding of aboriginal blood, and compelled the explorers to desist from the further prosecution of their journey. For this untoward event, however, Mitchell was not to blame, and he regretted he had to deal with convicts who were so difficult to control. The local tribes having thus become exasperated, a somewhat hasty retreat had to be made to the central depôt at Bourke, after 300 miles of the Darling had been traversed, and little doubt being left as to the remainder of the course till the junction with the Murray. III.