Add to ORKGAt head of title: State of Illinois. Department of Registration and Education. Division of the State Geological Survey.Includes bibliographical references
At head of title: State of Illinois. Department of Registration and Education. Division of State Geo...
At head of title: State of Illinois ... Department of registration and education ... Division of the...
Cover title.Prepared as part of an investigation conducted by the Engineering Experiment Station, Un...
At head of title: State of Illinois. Dept. of registration and education. Division of State geologic...
At head of title: State of Illinois ... Dept. of registration and education ... Division of the Stat...
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. Dept. of registration and education. Division of State geologic...
"From the Annual report of the chief to the director, Department of registration and education for f...
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...
"Reprinted fom the Annual report of the Chief to the Director, Dept. of Registration and Education, ...
At head of title: State of Illinois ... Dept. of registration and education ... Division of the Stat...
"Reprinted from the Annual report of the Chief to the Director, Dept. of Registration and Education,...
At head of title: State of Illinois. Department of Registration and Education. Division of State Geo...
At head of title: State of Illinois ... Department of registration and education ... Division of the...
Cover title.Prepared as part of an investigation conducted by the Engineering Experiment Station, Un...
At head of title: State of Illinois. Dept. of registration and education. Division of State geologic...
At head of title: State of Illinois ... Dept. of registration and education ... Division of the Stat...
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. Dept. of registration and education. Division of State geologic...
"From the Annual report of the chief to the director, Department of registration and education for f...
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...
"Reprinted fom the Annual report of the Chief to the Director, Dept. of Registration and Education, ...
At head of title: State of Illinois ... Dept. of registration and education ... Division of the Stat...
"Reprinted from the Annual report of the Chief to the Director, Dept. of Registration and Education,...
At head of title: State of Illinois. Department of Registration and Education. Division of State Geo...
At head of title: State of Illinois ... Department of registration and education ... Division of the...
Cover title.Prepared as part of an investigation conducted by the Engineering Experiment Station, Un...