WHGS Pamphlet – The Origin and Constitution of Coal

Author:  Reinhardt Thiessen

Description:  Read before the Wyoming Historical and Geological Society, Wilkes-Barre, PA, March 14, 1924 by Reinhardt Thiessen, Research Chemist, Pittsburgh Experiment Station. Published by permission of the Director, U.S. Bureau of Mines.

Size:  6 x 9 inches

Published: 1924