Subject
5 free books about coal, free to read online. Chapter 1 of any book is free, no account needed.
Coal and the coal mines
Homer Greene
Coal, and What We Get from It
Raphael Meldola
The Coming of Coal
Robert W. Bruère
The Story of a Piece of Coal: What It Is, Whence It Comes, and Whither It Goes
Edward A. Martin
The Mentor: The Story of Coal, vol. 6, Num. 6, Serial No. 154, May 1, 1918
Charles Fitzhugh Talman
