an appeal to the Privy Council, only to have Ontario's claim fully substantiated, and the total area of the province confirmed as more than double what Sir John Macdonald would have allowed it. The next issue put to the test the power of the Dominion to veto provincial laws. It was, in form, merely a dispute between two lumbermen, M'Laren and Caldwell, as to whether the one higher up on the stream could use, upon paying tolls, timber-slides built by the other lower down. But, as Edward Blake declared in 1886, this was 'of all the controversies between the Dominion and the provinces, by far the most important from the constitutional point of view, for it involved the principle which must regulate the use by the Dominion Government of the power of disallowing provincial legislation.' When in 1881 a court of {69} justice in Ontario held that the lumberman on the lower reaches could prevent the one higher up from floating down his logs, Mowat had an act passed providing that all persons possessed, and were thereby declared always to have possessed, the right denied by this judgment. This measure was at once disallowed by the Dominion Government. Then the Privy Council upheld the contention of the Ontario Government as to what the law had been even before the act was passed; and, when in 1884 the provincial legislature again passed the same act, the Dominion conceded the point. Thereafter the veto power has been used only when Dominion or Imperial interests were concerned, or when a statute was claimed to be beyond the power of the province to pass. The wisdom or justice of measures affecting only the local interests of the citizens of a province has been left to the judgment of its own people to determine.