 Initially printed as a limited edition of 200 copies, it was partially reprinted in 1878, and completely reprinted in a limited edition of 350 copies in 1927.In 1965, University Books, Inc. published 500 sets for the United States and 500 sets for the British Commonwealth with Publisher's Note and a Postface.A problem that the reader may find in Higgins' book is that the meaning of the title is unexplained.