Copyright

This electronic edition contains the complete text as found in the print edition of the book. Original copyright to this book is reserved by the Mr. Seltzer’s estate. Organizations and individuals seeking to use these materials outside the bounds of fair use or copyright law must obtain permission directly from the appropriate copyright holder. For more information about fair use, see the Michael Schwartz Library’s copyright guide: http://researchguides.csuohio.edu/copyright/fairuse. Any permitted use of this edition must credit the Cleveland State University Michael Schwartz Library and MSL Academic Endeavors as the source.

No significant reproduction of this digital edition, and no commercial use in any amount or form is permitted without express written consent of the university and Mr. Seltzer’s estate.

This book was originally printed in 1956.