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.

Ambiguous hyphens at the ends of lines were retained; occurrences of inconsistent hyphenation have not been changed.

The original book repeated chapter titles on most pages as though they were sidenotes. This eBook does not repeat the chapter titles.

The original book placed captions to the left or right of illustrations. This eBook generally places the captions above or below the illustrations.

Scaling information in captions does not apply to diagrams in this eBook, and the sizes of the illustrations, relative to other illustrations, are not necessarily the same as in the original book.

Transcriber adjusted the brightness and contrast of many photographs in order to reveal more detail in shadowed areas, and did not restore many photographs to grayscale, although they originally were printed that way. Without access to a pristine copy of the physical book, it was not possible to know how those photographs looked when the book was printed.

Infrequent occurrences of ‘Æ’ in ‘Æsthetic’ and ‘mediÆeval’ have been replaced by the more commonly occurring ‘ae’. Occurrences of the ligature in other words have not been changed.

Transcriber corrected errors in the Table of Contents.

The Index was not systematically checked for proper alphabetization or correct page references.

Page 33: Transcriber added missing closing quote after ‘is our selection,’.

Page 71: Unmatched closing quote removed after ‘with which he infects the spectator.’

Page 129: Transcriber added missing closing quote after ‘As you like it’.