For over a century it has been the settled doctrine of the Supreme Court that the principle of stare decisis has only limited application in constitutional cases. It might be thought that if any law is to be stabilized by a court decision it logically should be the most fundamental of all law -- that of the Constitution. But the years brought about a doctrine that such decisions must be tentative and subject to judicial cancellation if experience fails to verify them. The result is that constitutional precedents are accepted only at their current valuation and have a mortality rate almost as high as their authors.