Add to ORKGPrepared under a cooperative agreement between State Geological Survey, Dept. of Mining Engineering of the University of Illinois, and U.S. Bureau of Mines.Field work by S.O. Andros and R.Y. Williams.On cover: vol. 1 no. 5
At head of title: State Geological Survey, Department of Mining Engineering, University of Illinois,...
Illinois mining investigations prepared under a cooperative agreement between the Illinois State Geo...
Field work by G.H. Cady, F.H. Kay, K.D. White, and others.Illinois mining investigations prepared un...
Prepared under a cooperative agreement between State Geological Survey, Dept. of Mining Engineering ...
Prepared under a cooperative agreement between State Geological Survey, Dept. of Mining Engineering ...
Prepared under a cooperative agreement between State Geological Survey, Dept. of Mining Engineering ...
Prepared under a cooperative agreement between State Geological Survey, Dept. of Mining Engineering,...
Prepared under a cooperative agreement between State Geological Survey, Dept. of Mining Engineering ...
Prepared under a cooperative agreement between State Geological Survey, Dept. of Mining Engineering ...
At head of title: State of Illinois. Department of registration and education. Division of the state...
On cover: vol. 1 no. 4.Prepared under a cooperative agreement between State Geological Survey, Dept....
At head of title: State of Illinois. Department of registration and education. Division of the State...
Illinois mining investigations prepared under a cooperative agreement between the Illinois State Geo...
At head of title: State of Illinois. Department of registration and education. Division of the State...
Reprint from edition of 1915.At head of title: State of Illinois. Department of registration and edu...
At head of title: State Geological Survey, Department of Mining Engineering, University of Illinois,...
Illinois mining investigations prepared under a cooperative agreement between the Illinois State Geo...
Field work by G.H. Cady, F.H. Kay, K.D. White, and others.Illinois mining investigations prepared un...
Prepared under a cooperative agreement between State Geological Survey, Dept. of Mining Engineering ...
Prepared under a cooperative agreement between State Geological Survey, Dept. of Mining Engineering ...
Prepared under a cooperative agreement between State Geological Survey, Dept. of Mining Engineering ...
Prepared under a cooperative agreement between State Geological Survey, Dept. of Mining Engineering,...
Prepared under a cooperative agreement between State Geological Survey, Dept. of Mining Engineering ...
Prepared under a cooperative agreement between State Geological Survey, Dept. of Mining Engineering ...
At head of title: State of Illinois. Department of registration and education. Division of the state...
On cover: vol. 1 no. 4.Prepared under a cooperative agreement between State Geological Survey, Dept....
At head of title: State of Illinois. Department of registration and education. Division of the State...
Illinois mining investigations prepared under a cooperative agreement between the Illinois State Geo...
At head of title: State of Illinois. Department of registration and education. Division of the State...
Reprint from edition of 1915.At head of title: State of Illinois. Department of registration and edu...
At head of title: State Geological Survey, Department of Mining Engineering, University of Illinois,...
Illinois mining investigations prepared under a cooperative agreement between the Illinois State Geo...
Field work by G.H. Cady, F.H. Kay, K.D. White, and others.Illinois mining investigations prepared un...