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 and are not individually noted here.

Ambiguous hyphens at the ends of lines were retained.

Page 10: The list of Illustrations is incomplete.

Page 227: "beneath his feet" was misprinted as "beneath hi feet" (with extra space where the "s" belongs); corrected here.