Transcriber's Note

Page headers in the original text have been moved above the paragraph to which they relate.

All instances of "i.e." have been regularised to "i. e.".

The following printing errors have been corrected:

The following possible errors have not been changed:

The text uses the following inconsistently:

In addition, there are many inconsistencies in spelling and punctuation in quotations, which have not been changed.

Grätz and Gratz are different names.