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Rh only seven sit at a time. It happens again and again, where the question is a close one, that a case which one week is decided one way might be decided another way the next if it were then heard for the first time. The situation would, however, be intolerable if the weekly changes in the composition of the court were accompanied by changes in its rulings. In such circumstances there is nothing to do except to stand by the errors of our brethren of the week before, whether we relish them or not. But I am ready to concede that the rule of adherence to precedent, though it ought not to be abandoned, ought to be in some degree relaxed. I think that when a rule, after it has been duly tested by experience, has been found to be inconsistent with the sense of justice or with the social welfare, there should be less hesitation in frank avowal and full abandonment. We have had to do this sometimes in the field of constitutional law. Perhaps we should do so oftener in fields of private law where considerations of social utility are not so Rh