The spelling of non-English words was not checked.

Simple typographical errors were corrected.

Ambiguous hyphens at the ends of lines were retained.

Page [100]: Closing quotation mark added after “valuable consignments.”

Page [126 or 127]: Missing footnote anchor “62”.

Page [128 or 129]: Missing footnote anchor “67”.

Pages [134–138]: Missing footnote anchor “75”.

Pages [207–208]: Missing footnote anchors “123” through “127”.

Pages [220–225]: Missing footnote anchor “132”.

Page [254]: Paragraph beginning “The external reason” probably should be “The internal reason”.