Five sections have been updated. These are:
Under Contents menu: Contents
Under Text menu: Preface, Part One, Appendix One and Illustrations
Under Downloads: Contents, Preface, Part One, Appendix One and Illustrations
The revisions are minor corrections and typos, plus the addition, in Illustrations, of the Figures in the new Part Two.
Two new sections have been added. These are:
Under Text menu: Part Two and Acknowledgements
Under Downloads: Part Two