Whilst the greatest effort has been made to ensure the quality of this text, due to the historical nature of this content, in some rare cases there may be minor issues with legibility. I desire to thank my colleagues, Professors Bar rett, Judy, and Simons, as well as Mr. James Ford Rhodes, Professor John Bates Clark, and Mr. R. L. Ashley, for valuable suggestions made while the book was passing through the press. Alphabetical lists of the leading authorities will be found at the close of the volume.