The reason for the title "The Changing Law"is because many people think that the law is certain and that it can be changed anly by Parliament. The truth is that the law is often uncertain and it is continually being changed, or perhaps developed by judges. In theory judges do not make law. They only expound it. This process of gradual change has been the very life of the common law. If the common law is to retain its place as the greatest system of law that the world has ever seen, it can not stand still whilst everything else moves on. It must develop too. It must adopt itself to the new conditions. The author in his lectures tried to show how this is being done.