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.Mode of access: Internet
At head of title: State of Illinois. Department of Registration and Education. A.M. Shelton, Directo...
"From the Annual report of the chief to the director, Department of registration and education for f...
Mode of access: Internet.Prepared in cooperation with: Geological Survey (U.S.). Water Resources Di...
At head of title: State of Illinois, Dwight H. Green, Governor. Dept. of Registration and Education,...
At head of title: State of Illinois. Dept. of registration and education. Division of State geologic...
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. State geological surv...
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 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. Dept. of registration and education.Mode of access: Internet
At head of title: State of Illinois. Department of registration and education. Division of the State...
"Printed by authority of the State of Illinois."At head of title: State of Illinois. Department of R...
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. A.M. Shelton, Directo...
"From the Annual report of the chief to the director, Department of registration and education for f...
Mode of access: Internet.Prepared in cooperation with: Geological Survey (U.S.). Water Resources Di...
At head of title: State of Illinois, Dwight H. Green, Governor. Dept. of Registration and Education,...
At head of title: State of Illinois. Dept. of registration and education. Division of State geologic...
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. State geological surv...
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 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. Dept. of registration and education.Mode of access: Internet
At head of title: State of Illinois. Department of registration and education. Division of the State...
"Printed by authority of the State of Illinois."At head of title: State of Illinois. Department of R...
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. A.M. Shelton, Directo...
"From the Annual report of the chief to the director, Department of registration and education for f...
Mode of access: Internet.Prepared in cooperation with: Geological Survey (U.S.). Water Resources Di...