Minor typographical errors have been corrected without note.
Ambiguous hyphens at the ends of lines were retained.
Punctuation and spelling were made consistent when a predominant
form was found in this book; otherwise they were not changed.
Mid-paragraph illustrations have been moved between paragraphs
and some illustrations have been moved closer to the text that
references them. The paginations in the list of illustrations
have been adjusted accordingly.
Footnotes were moved to the end of chapters and numbered in one continuous
sequence
In the index the numbers i. and ii. refer to volumes i. and ii.
Other notes:
Page 191: "... three several times;" changed to "... several times;"