Dr. Jim Hower, UK CAER Scientist/Geologist, was one of the authors of a - Honorable Mention Best Poster - at the Pittsburgh Coal Conference held in Pittsburgh, PA from October 5-8, 2015. The poster was ... A new map of metallurgical coal of the United States with geochemical, rheological, and petrological data. Authors: Trippi, M.H., Ruppert, L.F., Eble, C.F., Hower, J.C.