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Rh cept what was held to have been the rule of policy a hundred or a hundred and fifty years ago, but to ascertain, with as near an approach to accuracy as circumstances permit, what is the rule of policy for the then present time. When that rule bas been ascertained, it becomes their duty to refuse to give effect to a private contract which violates the rule, and would, if judicially enforced, prove injurious to the community." A like thought finds expression in the opinions of our own courts. "Arbitrary rules which were originally well founded have thus been made to yield to changed conditions, and underlying principles are applied to existing methods doing business. The tendencies in most of the American courts are in the same direction." I think we may trace a like development in the attitude of the courts toward the activities of labor unions. The suspicion and even hostility of an earlier generation found reflection in judicial decisions which a changing conception of social values Rh