Transcriber’s Note: Blank pages have been deleted. On pages that remain, some unnecessary page numbers may have been deleted when they fall in the middle of lists. Some illustrations may have been moved. Footnotes have been moved to the preceding pages. When the author’s preference can be determined, we have rendered consistent on a per-word-pair basis the hyphenation or spacing of such pairs when repeated in the same grammatical context. The publisher’s inadvertent omissions of important punctuation have been corrected. A table of contents has been added. Duplicative front matter has been removed.

The following list indicates any additional changes. The page number represents that of the original publication and applies in this etext except for footnotes and illustrations since they may have been moved.