SCIENTIFIC AND TECHNICAL STAFF OF THE 

 STATE GEOLOGICAL SURVEY DIVISION 



100 Natural Resources Building, Urbana 



M. M. LEIGHTON, Ph.D., Chief 



Enid Townley, M.S., Assistant to the Chief 



Velda a. Millard, Junior Asst. to the Chief 



Helen E. McMorris, Secretary to the Chief 



Betty J. Westerbeek, Geological Assistant 



GEOLOGICAL RESOURCES 

 Coal 



G. H. Cady, Ph.D., Senior Geologist and Head 

 L. C. McCabe, Ph.D., Geologist (on leave) 

 R. J. Helfinstine, M.S., Mech. Engineer 

 Charles C. Boley, M.S., Assoc. Mining Eng. 

 Heinz A. Lowenstam, Ph.D., Assoc. Geologist 

 Bryan Parks, M.S., Asst. Geologist 

 Earle F. Taylor, M.S., Asst. Geologist (on leave) 

 Ralph F. Strete, A.M., Asst. Geologist 

 M. W. Pullen, Jr., M.S., Asst. Geologist 

 Robert M. Kosanke, M.A., Asst. Geologist 

 Robert Ellingwood, B.S., Asst. Geologist 

 George M. Wilson, B.S., Asst. Geologist 

 Arnold Eddings, B.A., Research Assistant (on 



leave) 

 Henry L. Smith, A.B., Research Assistant 

 Raymond Siever, B.S., Research Assistant 

 John A. Harrison, B.S., Research Assistant (on 



leave) 

 Mary E. Barnes, B.S., Research Assistant 

 Robert T. Anderson, M.A., Asst. Physicist 

 Margaret Parker, B.S., Research Assistant 



Industrial Minerals 



J. E. Lamar, B.S., Geologist and Head 

 H. B. Willman, Ph.D., Assoc. Geologist 

 Robert M. Grogan, Ph.D., Assoc. Geologist 

 Robert R. Reynolds, M.S., Asst. Geologist 

 Margaret Copeland, A.B., Research Assistant 



Oil and Gas 



A. H. Bell, Ph.D., Geologist and Head 



Carl A. Bays, Ph.D., Geologist and Engineer 



Frederick Squires, B.S., Petroleum Engineer 



Stewart Folk, M.S., Assoc. Geologist 



William H. Easton, Ph.D., Assoc. Geologist 



Ernest P. Du Bois, Ph.D., Asst. Geologist 



Paul G. Luckhardt, M.S., Asst. Geologist (on 



leave) 

 Wayne F. Meents, Asst. Geologist 

 James S. Yolton, M.S.. Asst. Geologist 

 Margaret Sands, B.S., Research Assistant 

 Robert F. Smith, A.B., Research Assistant 



Areal and Engineering Geology 



George E. Ekblaw, Ph.D., Geologist and Head 

 Richard F. Fisher, M.S., Asst. Geologist 



L. E. Workman, M.S., Geologist and Head 

 Caril a. Bays, Ph.D., Geologist and Engineer 

 Charles W. Carter, Ph.D., Assoc. Geologist 

 Robert R. Storm, A.B., Assoc. Geologist 

 Arnold C. Mason, B.S., Assoc. Geologist (on 



leave) 

 C. Leland Horberg, Ph.D., Assoc. Geologist 

 Frank E. Tippie, B.S., Asst. Geologist 

 Merlyn B. Buhle, M.S., Asst. Geologist 

 Paul Herbert, Jr., B.S., Asst. Geologist 

 Charles G. Johnson, A.B., Asst. Geologist (on 



leave) 

 Dorothy B. Speziale, M.S., Asst. Geologist 

 Marvin P. Meyer, B.S., Asst. Geologist 

 Margaret Castle, Research Assistant 

 Ruth E. Roth, B.S., Research Assistant 



Stratigraphy and Paleontology 



J. Marvin Weller, Ph.D., Geologist and Head 

 Chalmer L. Cooper, M.S., Assoc. Geologist. 

 William H. Easton, Ph.D., Assoc. Geologist 



Petrography 



Ralph E. Grim, Ph.D., Petrographer 

 Richards A. Rowland, Ph.D., Asst. Petrographer 

 (on leave) 



Physics 



R. J. Piersol, Ph.D., Physicist 

 B. J. Greenwood, B.S., Mech. Engineer 

 Donald O. Holland, M.S., Asst. Physicist (on 

 leave) 



GEOCHEMISTRY 



Frank H. Reed, Ph.D., Chief Chemist 

 H. W. Jackman, M.S.E., Chemical Engineer 

 James C. McCullough, Research Associate 

 Elizabeth Ross Mills, M.S., Research Assistant 



Coal 



G. R, Yohe, Ph.D., Chemist 



Herman S. Levine, B.S., Research Assistant 



Industrial Minerals 



J. S. Machin, Ph.D., Chemist and Head 

 Delbert L. Hanna, A.m., Asst. Chemist 



Fluorspar 



G. C. Finger, Ph.D. 



Chemist 



X-ray and Spectrography 

 W. F. Bradley, Ph.D., Chemist 



Analytical 



O. W. Rees, Ph.D., Chemist and Head 

 Howard S. Clark, A.B., Assoc. Chemist 

 L. D. McVicker, B.S., Chemist 

 P. W Henline, M.S., Assoc. Chemical Engineer 

 William F. Wagner, M.S., Asst. Chemist 

 Cameron D. Lewis, B.A., Asst. Chemist 

 Herbert N. Hazelkorn, B.S., Research Assistant 

 William T. Abel, B.A., Research Assistant 

 Carol J. Adams, B.S., Research Assistant 



MINERAL ECONOMICS 



W. H. VosKuiL, Ph.D., Mineral Economist 

 Douglas F. Stevens, M.E., Research Associate 

 Ethel M. King, Research Assistant 



PUBLICATIONS AND RECORDS 



George E. Ekblaw, Ph.D.. Geologic Editor 

 Chalmer L. Cooper, M.S., Geologic Editor 

 Dorothy E. Rose, B.S., Technical Editor 

 Portia Allyn Smith, Technical Files Clerk 

 Rosemary Metzger, Technical Assistant 

 Meredith M. Calkins, Geologic Draftsman 

 Beulah Featherstone, B.F.A., Agst. Geologic 



Draftsman 

 Leslie D. Vaughan, Asst. Photographer 



Consultants: Ceramics, Cullen W. Parmelee, M.S., D.Sc, and Ralph K. Hursh, B.S., University of Illinois 



Mechanical Engineering, Seichi Konzo, M.S., University of Illinois 

 Topographic Mapping in Cooperation with the United States Geological Survey. 

 This report is a Contribution of the Stratigraphy and Paleontology Section. May In, 1944 



ILLINOIS GECL06ICAL 

 SURVEY LIBRARY 



