Who holds the copyright?
The University of Chicago holds copyright to the original 1938 monograph, all rights reserved. They granted the Electronic Text Center permission to electronically publish the monograph with the following provisions: This text must be used and shared in accordance with the fair use provisions of US and international copyright laws and agreement, and it may be archived and distributed in electronic form, provided that this entire notice, including copyright information, is carried, and provided that the University of Chicago press is notified and no fee is charged for access. Archiving, republication, or redistribution of this text on other terms, in any medium, requires both the consent of the author(s) and the University of Chicago Press. The images used on these pages were obtained from the American Memory Collection at the Library of Congress, and our use of them conforms to fair use provisions of US copyright laws. A statement defining fair use can be found at: http://memory.loc.go
