A similar instance in the state of Wisconsin is afforded by the compulsory readjustment of the freight rate on wood pulp, lumber and sawed logs.[120] On investigation it appeared that, despite a very much lower commercial value for the raw material used in paper manufacture, the rates on pulp wood were more than double those on logs to be sawed up for lumber. It appeared, furthermore, that this apparent anomaly was due not so much to high rates on the pulp wood as to very low rates on sawed logs. These latter rates for many years had been fixed at a very low figure because originally the bulk of such logs, cut in the river bottoms, was floated down stream to mills along the Mississippi river. Competition with lumber raft rates originally determined the charges on lumber by rail. The paper industry did not begin until these conditions of water competition had quite disappeared. Gradually, with the progress of deforestation, all the timber is now found on the uplands far from navigable water courses; so that the rates today are not at all influenced by competitive rates on the lumber rafts down river. Nevertheless the old tariffs on lumber remained in force despite the changed conditions, while the new rates on pulp wood were fixed independently of any rates by water. It was only after careful investigation that the injustice to the paper manufacturers from the disparity in charges appeared. Here again it was the rigidity and interlocked complexity of adjustment which placed it in the power of one road to block change of any sort.[121] The compulsory exercise of governmental authority cut the Gordian knot with the result that substantial justice now obtains.[122]