Throughout the document, the romanization of Japanese words was in a form dissimilar to that used today. For instance, the era immediately prior to the Showa era was called the Meidji era rather than the Meiji era. No attempt was made to modernize the romanization used.
Also, throughout the document there was inconsistent hyphenation of Japanese words. No attempt was made to make the hyphenation consistent, inasmuch as the notion of hyphenation is absent in the Japanese language.
Errors in punctuations, spelling, and inconsistent hyphenation were not corrected unless otherwise noted below:
On page vii, "foreging" was replaced with "foregoing".
On page xvii, a period was added after "Growth of the Imperial Power".
On page 16, "political devolopment" was replaced with "political development".
On page 24, "necesasry" was replaced with "necessary".
On page 25, "later" was replaced with "latter".
On page 29, "archaeological" was replaced with "archæological".