Yet criticism of the new economic regime was not lacking. The growth of protectionist feeling in both countries after 1857 brought about incidents and created an atmosphere which were dangerous to the continuance of close trade relations. In 1858 and 1859 the Canadian Government raised substantially the duties on manufactured goods in order to meet the bills for its lavish railway policy. This increase hit American manufacturers and led to loud complaints that the spirit of the Reciprocity Treaty had been violated. Alexander T. Galt, Canadian Minister of Finance, had no difficulty in showing that the tariff increases were the only feasible sources of revenue, that the agreement with the United States did not cover manufactures, and that the United States itself, faced by war demands and no longer controlled by free trade Southerners, had raised duties still higher. The exports of the United States to the Provinces in the reciprocity period were greater, contrary to the later traditions, than the imports. On economic grounds the case for the continuance of the reciprocity agreement was strong, and probably the treaty would have remained in force indefinitely had not the political passions roused by the Civil War made sanity and neighborliness in trade difficult to maintain. When the Civil War broke out, the sympathies of Canadians were overwhelmingly on the side of the North. The railway and freer trade had been bringing the two peoples closer together, and time was healing old sores. Slavery was held to be the real issue, and on that issue there were scarcely two opinions in the British Provinces.