Attribution and license
The text of this eBook is from Project Gutenberg:
http://www.gutenberg.org/files/4382/4382-h/4382-h.htm.
The cover image is of the Chicago Board of Trade Building in 1885:
http://commons.wikimedia.org/wiki/File:Chicago_Board_of_Trade_1885.jpg.
The image is in the public domain in the United States and in countries where the term of copyright is life of the author plus 70 years or less, according to that Wikimedia source.
This eBook is distributed under the Creative Commons 3.0 license, non-commercial, share alike with attribution.