Analyses of Samples of Delivered Coal

Collected from July 1, 1915 to January 1, 1922, with a Chapter on the Tidewater Pool Classifications

by Galen Howell Clevenger, George Samuel Rice, Willard Walker Cutler, James Washington Paul, Lee Clyde Ilsley, Ned H. Snyder, Ernest J. Gleim, Martinus H. Caron, Max Wilhelm Von Bernewitz · 1925