Obvious printer's errors have been repaired, other inconsistent spellings have been kept, including inconsistent use of hyphen (e.g. "widespread" and "wide-spread"), capitalisation (e.g. "Op. cit." and "Op. Cit."), proper names (e.g. "Rumania" and "Roumania") and any other probable alternate spellings (e.g. "Good-bye" and "Good-by").

Index entries that do not match their referred text are corrected.