Add to ORKGAt head of title: State of Illinois, Dwight H. Green, Governor. Dept. of Registration and Education, Frank G. Thompson, Director. Division of the State Geological Survey, M.M. Leighton, Chief, Urbana."Reprinted from Industrial and Engineering Chemistry, vol. 36, no. 4, April, 1944.""Literature cited": p. 12
At head of title: State of Illinois ... Dept. of registration and education ... Division of the Stat...
Illinois mining investigations prepared under a cooperative agreement between the Illinois State Geo...
Cover title.Reprinted from the Transactions, Illinois State Academy of Science, vol. 33, no. 2, Dece...
"References to publications": p. 62.Introduction -- Summary -- Status of Illinois coals. Historical ...
At head of title: State of Illinois, Dwight H. Green, Governor. Dept. of Registration and Education,...
At head of title: State of Illinois, Dwight H. Green, governor. Dept. of registration and education,...
At head of title: State of Illinois, Dwight H. Green, Governor. Dept. of Registration and Education,...
Reprint from edition of 1915.At head of title: State of Illinois. Department of registration and edu...
At head of title: State of Illinois ... Department of registration and education.Bibliography: p. 75
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. 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. 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. Department of registration and education. Division of the State...
At head of title: State of Illinois ... Dept. of registration and education ... Division of the Stat...
Illinois mining investigations prepared under a cooperative agreement between the Illinois State Geo...
Cover title.Reprinted from the Transactions, Illinois State Academy of Science, vol. 33, no. 2, Dece...
"References to publications": p. 62.Introduction -- Summary -- Status of Illinois coals. Historical ...
At head of title: State of Illinois, Dwight H. Green, Governor. Dept. of Registration and Education,...
At head of title: State of Illinois, Dwight H. Green, governor. Dept. of registration and education,...
At head of title: State of Illinois, Dwight H. Green, Governor. Dept. of Registration and Education,...
Reprint from edition of 1915.At head of title: State of Illinois. Department of registration and edu...
At head of title: State of Illinois ... Department of registration and education.Bibliography: p. 75
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. 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. 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. Department of registration and education. Division of the State...
At head of title: State of Illinois ... Dept. of registration and education ... Division of the Stat...
Illinois mining investigations prepared under a cooperative agreement between the Illinois State Geo...
Cover title.Reprinted from the Transactions, Illinois State Academy of Science, vol. 33, no. 2, Dece...