"standards of production" fixed with the aid of scientific managers employed jointly by the employers and the union. The spring and summer of 1921 were a time of widespread "readjustment" strikes, or strikes against cuts in wages, especially in the building trades. The building industry went through in 1921 and 1922 one of its periodic upheavals against the tyranny of the "walking delegates" and against the state of moral corruption for which some of the latter shared responsibility together with an unscrupulous element among the employers. In San Francisco, where the grip of the unions upon the industry was strongest, the employers turned on them and installed the "open-shop" after the building trades' council had refused to accept an award by an arbitration committee set up by mutual agreement. The union claimed, however, in self-justification that the Committee, by awarding a _reduction_ in the wages of fifteen crafts while the issue as originally submitted turned on a demand by these crafts for a _raise_ in wages, had gone outside its legitimate scope. In New York City an investigation by a special legislative committee uncovered a state of reeking corruption among the leadership in the building trades' council and among an element in the employing group in connection with a successful attempt to establish a virtual local monopoly in building. Some of the leading corruptionists on both sides were given court sentences and the building trades' council accepted modifications in the "working rules" formulated by the counsel for the investigating committee. In Chicago a situation developed in many respects similar to the one in San Francisco. In a wage dispute, which was submitted by both sides to Federal Judge K.M. Landis for arbitration, the award authorized not only a wage reduction but a revision of the "working rules" as well. Most of the unionists refused to abide by the award and the situation developed into literal warfare. In Chicago the employers' side was aggressively upheld by a "citizens' committee" formed to enforce the Landis award. The committee claimed to have imported over 10,000 out-of-town building mechanics to take the places of the strikers.