Add to ORKGAt head of title: State of Illinois. Department of Registration and Education. Division of the State Geological Survey.A proposed simplification of the Parr Unit coal formula / Gilbert Thiessen -- Ash-to-mineral matter correction in coal analyses / Gilbert Thiessen -- Unit coal as a basis of coal standardization as applied to Illinois coals / G.H. Cady and O.W. Rees -- Studies of the graphical method of calculating pure coal calorific value / Gilbert Thiessen and Frank H. Reed
Includes: The Composition of Iowa Coals Studies in the Washing of Iowa Coal The Storage of Iowa Co...
At head of title: Illinois. Department of Registration and Education. Division of the Geological Sur...
Thesis (B.S.)--University of Illinois, 1907.Typescript.Includes bibliographical references
At head of title: State of Illinois. Department of Registration and Education. Division of the State...
At head of title: State of Illinois. Department of Registration and Education. Division of the State...
At head of title: State of Illinois, Dwight H. Green, governor. Dept. of registration and education,...
At head of title: State of Illinois. Department of Registration and Education. Division of the State...
At head of title: State of Illinois. Department of Registration and Education. Division of the State...
"References to publications": p. 62.Introduction -- Summary -- Status of Illinois coals. Historical ...
Cover title.Published also as thesis of H. L. Olin (PH.D., University of Illinois, 1914) without the...
At head of title: State of Illinois ... Department of registration and education.Bibliography: p. 75
Cover title.Prepared as part of an investigation conducted by the Engineering Experiment Station, Un...
Reprinted from Economic geology, vol. 44, no. 1, pp. 1-12, January-February, 1949.Bibliography: p. 1...
Project monitor: Dr. Ken K. Ho.Final report (revised) to the Coal Research Board, Illinois Departmen...
Thesis (M.A.)--University of Illinois, 1911.Typescript.Includes bibliographical references
Includes: The Composition of Iowa Coals Studies in the Washing of Iowa Coal The Storage of Iowa Co...
At head of title: Illinois. Department of Registration and Education. Division of the Geological Sur...
Thesis (B.S.)--University of Illinois, 1907.Typescript.Includes bibliographical references
At head of title: State of Illinois. Department of Registration and Education. Division of the State...
At head of title: State of Illinois. Department of Registration and Education. Division of the State...
At head of title: State of Illinois, Dwight H. Green, governor. Dept. of registration and education,...
At head of title: State of Illinois. Department of Registration and Education. Division of the State...
At head of title: State of Illinois. Department of Registration and Education. Division of the State...
"References to publications": p. 62.Introduction -- Summary -- Status of Illinois coals. Historical ...
Cover title.Published also as thesis of H. L. Olin (PH.D., University of Illinois, 1914) without the...
At head of title: State of Illinois ... Department of registration and education.Bibliography: p. 75
Cover title.Prepared as part of an investigation conducted by the Engineering Experiment Station, Un...
Reprinted from Economic geology, vol. 44, no. 1, pp. 1-12, January-February, 1949.Bibliography: p. 1...
Project monitor: Dr. Ken K. Ho.Final report (revised) to the Coal Research Board, Illinois Departmen...
Thesis (M.A.)--University of Illinois, 1911.Typescript.Includes bibliographical references
Includes: The Composition of Iowa Coals Studies in the Washing of Iowa Coal The Storage of Iowa Co...
At head of title: Illinois. Department of Registration and Education. Division of the Geological Sur...
Thesis (B.S.)--University of Illinois, 1907.Typescript.Includes bibliographical references