Prepared under a cooperative agreement between the Engineering Experiment Station of the University of Illinois and the Illinois State Geological Survey.On cover: University of Illinois bulletin. vol. XXIV, no. 6; vol. XXV, no. 14; vol. XXVI, no. 11; vol. XXVII, no. 15.Part IV by Cloyde M. Smith
Cover title.Prepared as part of an investigation conducted by the Engineering Experiment Station, Un...
This report was prepared under a coo??perative agreement between the Engineering Experiment Station ...
Cover title.Prepared as part of an investigation conducted by the Engineering Experiment Station, Un...
Prepared under a cooperative agreement between the Engineering Experiment Station of the University ...
Prepared under a cooperative agreement between the Engineering Experiment Station of the University ...
Prepared under a cooperative agreement between the Engineering Experiment Station of the University ...
Prepared under a cooperative agreement between the Engineering Experiment Station of the University ...
On cover: University of Illinois bulletin. vol. XXXV, no. 20."Recent bibliography of mine-ventilatio...
Cover title.Prepared as part of an investigation conducted by the Engineering Experiment Station, Un...
Cover title.Prepared as part of an investigation conducted by the Engineering Experiment Station, Un...
Cover title.Prepared as part of an investigation conducted by the Engineering Experiment Station, Un...
Prepared under a coo??perative agreement between the Engineering Experiment Station of the Universit...
Cover title.Prepared as part of an investigation conducted by the Engineering Experiment Station, Un...
This report was prepared under a coo??perative agreement between the Engineering Experiment Station ...
At head of title: State Geological Survey, Department of Mining Engineering, University of Illinois,...
Cover title.Prepared as part of an investigation conducted by the Engineering Experiment Station, Un...
This report was prepared under a coo??perative agreement between the Engineering Experiment Station ...
Cover title.Prepared as part of an investigation conducted by the Engineering Experiment Station, Un...
Prepared under a cooperative agreement between the Engineering Experiment Station of the University ...
Prepared under a cooperative agreement between the Engineering Experiment Station of the University ...
Prepared under a cooperative agreement between the Engineering Experiment Station of the University ...
Prepared under a cooperative agreement between the Engineering Experiment Station of the University ...
On cover: University of Illinois bulletin. vol. XXXV, no. 20."Recent bibliography of mine-ventilatio...
Cover title.Prepared as part of an investigation conducted by the Engineering Experiment Station, Un...
Cover title.Prepared as part of an investigation conducted by the Engineering Experiment Station, Un...
Cover title.Prepared as part of an investigation conducted by the Engineering Experiment Station, Un...
Prepared under a coo??perative agreement between the Engineering Experiment Station of the Universit...
Cover title.Prepared as part of an investigation conducted by the Engineering Experiment Station, Un...
This report was prepared under a coo??perative agreement between the Engineering Experiment Station ...
At head of title: State Geological Survey, Department of Mining Engineering, University of Illinois,...
Cover title.Prepared as part of an investigation conducted by the Engineering Experiment Station, Un...
This report was prepared under a coo??perative agreement between the Engineering Experiment Station ...
Cover title.Prepared as part of an investigation conducted by the Engineering Experiment Station, Un...