Beschreibung:
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 publication of the book has been delayed by the difficulties of these times, which have also hindered the continuance of some researches and the publication of others that are almost or quite complete A few results which could not be included in the book itself are given in supple mentary notes at the end.
The publication of the book has been delayed by the difficulties of these times, which have also hindered the continuance of some researches and the publication of others that are almost or quite complete A few results which could not be included in the book itself are given in supple mentary notes at the end.