*"He will find that the amiable enthusiasts who meet every May at Exeter Hall to consider on the best means of converting certain aboriginal tribes in Africa, India, and the Islands of the Pacific, need not go so far to find human beings more barbarous and yet much more easily reclaimed."<ref>Samuel Sidney, ''Rides on Railways.'' 1851. Digital version at [http://www.gutenberg.org/files/13271/13271-h/13271-h.htm Project Gutenburg].</ref>
Listen to the free audio version of this book at the website [http://librivox.org/local-color-collection-vol-001/ LibriVox] (see ''The Black Country'' by Sidney).