• Earth and Mineral Sciences, College of479
• EMS136
• Commonwealth of Pennsylvania31
• Edward Steidle29
• A.W. Gauger21
• Linda Musser18
• Justin L Goldston17
• Ashley, George H.16
• George H. Ashley13
• William S. Lytle11
• C.C. Wright9
• J.D. Sisler9
• Walter R. Wagner9
• John F. Reese7
• Lytle, William S.7
• Sisler, J. D.7
• Addison S. Cate6
• Cathcart, S. H.6
• College of Mineral Industries6
• M.E. Bell6