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. The enterprise, it need scarcely be said, has been a laborious one, and, as the occupation of somewhat limited hours of leisure, has been spread over a considerable number of years. In some respects this may have been an advantage, but it has entailed certain drawbacks also. Had the earlier chapters been written more recently.