Transcriber's Notes
Obvious typographical errors have been silently corrected.
In the Preface “largely unnecessary and [unavoidable]” has been changed to “largely unnecessary and avoidable”
The table of contents has been added by the transcriber.
Obvious typographical errors have been silently corrected.
In the Preface “largely unnecessary and [unavoidable]” has been changed to “largely unnecessary and avoidable”
The table of contents has been added by the transcriber.