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 Helen E. McMorris^ Secretary to the Chief 



Velda A. Millard, Junior Asst. to the Chief Effie Hetishee, B.S., Geological Assistant 



GEOLOGICAL RESOURCES 



Petrographer and Principal 



Ralph E. Grim, Ph.D. 

 Geologist in Charge 



Coal 



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

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

 Rolf W. Roley, B.S., Asst. Mining Engineer 

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

 John A. Harrison, B.S., Asst. Geologist 

 Jack A. Simon, B.A., Asst. Geologist 

 Arnold Eddings, B.A., Asst. Geologist 

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

 Margaret Parker, B.S., Research Assistant 

 Walter E. Cooper, Technical Assistant 

 Florence Honea, B.F.A., Technical Assistant 



Oil and Gas 



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

 Frederick Squires, B.S., Petroleum Engineer 

 David H. Swann, Ph.D., Assoc. Geologist 

 Virginia Kline, Ph.D., Assoc. Geologist 

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

 Wayne F. Meents, Asst. Geologist 

 Richard J. Cassin, B.S., Research Assistant 

 Nancy McDurmitt, B.S., Research Assistant 



Industrial Minerals 



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

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

 Raymond S. Siirode, B.S., Research Assistant 



Clay Resources and Clay Mineral Technology 



Ralph E. Grim, Ph.D., Petrographer and Head 

 Henry M. Putman, B.A.Sc, Asst. Geologist 

 William A. White, B.S., Research Assistant 



Groundwater Geology and Geophysical 

 Exploration 



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



Head 

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

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



(on leave) 

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

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

 Gordon W. Prescott, B.S., Asst. Geologist 

 Margaret J. Castle, Asst. Geologic Draftsman 

 Robert N. M. Urash, B.S., Research Assistant 

 George H. Davis, B.S., Research Assistant 



(on leave) 



Engineering Geology and Topographic 

 Mapping 



George E. Ekblaw, Ph.D. 

 Richard F. Fisher, M.S., 



Geologist and Head 

 Asst. Geologist 



Areal Geology and Paleontology 



H. B. Willman, Ph.D., Geologist and Head 

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

 J. S. Templeton, Ph.D., Assoc. Geologist 

 Donald Saxby, M.S., Research Assistant 



Subsurface Geology 



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

 Elwood Atherton, Ph.D., Asst. Geologist 

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

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



Physics 



R. J. Piersol, Ph.D. 



Mineral Resource Records 

 Vivian Gordon, Head 



Ruth R. Warden, B.S., Research Assistant 

 Dorothy F. Spencer, B.S., Technical Assistant 

 Mary Burnett, Technical Assistant 

 Susan M. Tull, B.A., Technical Assistant 

 Meta L. Pilgrim, Technical Assistant 

 Harriet C. Daniels, B.A., Technical Assistant 



GEOCHEMISTRY 



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

 Grace C. Johnson, B.S., Research Assistant 



Coal 



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

 Eva O. Blodgett, B.S., Research Assistant 



Industrial Minerals 



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

 Tin Boo Yee, M.S., Research Assistant 

 Paulene Ekman, B.A., Research Assistant 



Fluorspar 



G. C. Finger, Ph.D., Chemist and Head 



Oren F. Williams, B.Engr., Special Research 



Assistant Chemist 

 Lewis E. Moncrief, B.S., Research Assistant 

 Horst G. Schneider, B.S., Special Research Asst. 



Chemical Engineering 

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



Head . , ^ . 



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

 B. J. Greenwood, B.S., Mechanical Engineer 

 James C. McCullough, Research Associate 

 James H. Hanes, B.S., Research Assistant 



(on leave) 

 Earl C. Noble, Technical Assistant 



X-ray and Spectrography 

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



Analytical Chemistry 



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

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

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

 John C. Gogley, B.S., Research Assistant 

 Emile D. PieRRON, B.S., Research Assistant 

 Elizabeth Bartz, A.B., Research Assistant 

 Albertine Krohn, B.S., Research Assistant 

 Gloria J. Gilkey, B.S., Research Assistant^ 

 Annabelle G. Elliott, B.S., Technical Assistant 



\\. 



MINERAL ECONOMICS 



H. Voskuil, Ph.D., Mineral Economist 



Physicist Emeritus 



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

 Nina Hamrick, A.B., Research Assistant 

 Ethel M. King, Research Assistant 



EDUCATIONAL EXTENSION 



Gilbert O. Raasch, Ph.D., Assoc. Geologist 

 Georgia B. Meredith, B.S., Technical Assistant 



LIBRARY 



Regina Yoast, B.A., B.L.S., Librarian 

 Ruby D. Frison, Technical Assistant 



PUBLICATIONS 



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

 M. Elizabeth Staaks, B.S., Assistant Editor 

 Meredith M. Calkins, Geologic Draftsman 

 Beverly Scotton, Assistant Geologic Draftsman 

 Willis L. Busch, Principal Technical Assistant 

 Leslie D. Vaughan, Assistant Photographer 

 Beulah M. Unfer, Technical Assistant 



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 Division of Areal Geology and Paleontology. 



March 15, 1947 



