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; occasional unbalanced quotation marks retained.

The author often omitted commas in simple in-line lists and between adjectives.

Ambiguous hyphens at the ends of lines were retained; occurrences of inconsistent hyphenation have not been changed. Sidenotes in this eBook originally were odd-page running headers, and have been placed between paragraphs near the pages on which they appeared. They are not always at the beginning of the subjects they summarize. Index not checked for proper alphabetization or correct page references.