William Whewell 
Architectural Notes on German Churches [PDF ebook] 
To Which Is Now Added, Notes Written During an Architectural Tour in Picardy and Normandy

Whilst the greatest effort has been made to ensure the quality of this text, due to the historical nature of this content, in some rare cases there may be minor issues with legibility. Thus the change in the office of the columns, from supporting the entablature to supporting the arch, almost inevitably followed after the. Introduction of the arch; since, as is observed in the following pages, the arch was the principal opening, and the columns the principal sup ports.