Punctuation and spelling were made consistent when a predominant preference was found in this book; otherwise they were not changed.

Simple typographical errors were corrected.

Ambiguous hyphens at the ends of lines were retained.

When necessary, illustrations were moved so as to not interrupt the flow of text.

Footnotes were moved to the end of the book, just before the Index.

Table of Contents lists "A CHAPTER ON ENGLISH ENGRAVING" as being on page 278, but it is on page 287. Corrected here.