Page:The American Cyclopædia (1879) Volume IV.djvu/740

 {|align="center" cellpadding="0" cellspacing="0" style="font-size: 70%"
 * [[Image:AmCyc Coal - United States fields.jpg|1600px]]
 * align="center"|Eng by A. Petersen, Washington, D. C.
 * }
 * }