Obvious punctuation errors repaired.

The image "Listening to a TrouvÈre in a ChÂteau of the Thirteenth Century" is shown in the list of Illustrations as "Facing p. 140" It is actually placed between p251 and p252 in the original. The position in the original has been retained, but its placement may be a printer's error.

The remaining corrections made are indicated by dotted lines under the corrections. Scroll the mouse over the word and the original text will appear.