The new Joe and Rika Mansueto Library at the University of Chicago houses cutting-edge facilities for preservation and digitization of physical books, as well as a high-density underground storage system with the capacity to hold 3.5 million volume equivalents. With its soaring elliptical dome and prime location on campus, the Mansueto Library's Grand Reading Room, which opens May 16, 2011, provides an inviting space for rigorous scholarship in an array of fields.
Uhhhhhhh...Kindle is NOT a repository for digital work......only a reader/local storage device. This is a good source you presented - possibly available for free downloads to a Kindle.
[url=http://www.gutenberg.org" onclick="window.open(this.href);return false;]www.gutenberg.org[/url] is one of many sources.