Transcriber’s Note

This work was originally published in 1851.As noted in the original, footnotes marked by an asterisk were added by the editor of the 1909edition, from which this e-book was prepared.

Obvious printer errors have been corrected without note. Other errorsare indicated by red dotted underlining. Hover the cursor over the underlinedtext to see a pop-upTranscriber's Note.These notes are also contained in a Transcriber's Errata List atthe end of this e-book. Certain spelling inconsistencieshave been made consistent; for example, Pietro della Francesca has been changed toPiero della Francesca; Rafaelle to Raffaele; and Pintoricchioto Pinturicchio.

Full-page illustrations have been moved so as not to break up the flowof the text.

This e-book contains some phrases in ancient Greek, which may notdisplay properly in all browsers, depending on the fonts the user has installed.Hover the mouse over the Greek text to see a popup transliteration,e.g., βίβλος.A List of Greek Transliterations can also be found at the end of this e-book.