PUBLISHER'S NOTE 



For bibliographical reasons, Professor Emil Truog, chairman 

 of the committee responsible for this book, has been designated 

 editor. Listing volumes of essays written under separate author- 

 ship presents problems to bibliographers which do not easily 

 lend themselves to practical solution. The Press, therefore, feels 

 that scholars will be grateful for a simple entry under which 

 this book may appear in files, catalogues, and bibliographies. 



