257 Broadway, New York
CHICAGO, 277 Dearborn Street
BOSTON, 170 Purchase Street
PARIS, 21 Rue de Lappe
AMSTERDAM, Prinsengracht 762
Transcriber's Note:
The [one footnote] has been moved to the end of its chapter.
Illustrations have been moved to paragraph breaks near where they are discussed.
Punctuation has been made consistent.
Section names are inconsistent between the table of contents, chapter headers, and actual section names.
Variations in spelling and hyphenation were retained as they appear in the original publication, except that obvious typographical errors have been corrected.