Minor errors in punctuation and formatting have been silently corrected. Please see the transcriber’s note at the end of this text for details regarding the handling of any textual issues encountered during its preparation.

Full-width images have been moved to paragraph breaks. The pagination used in the list of images is therefore approximate, but each is linked directly to the illustration.

Footnotes have been resequenced to be unique across the text, and were moved to the end of the text.

The cover image has been fabricated and is placed in the public domain.