Illinois Tollway.

Mode of access: Internet.

The Illinois teacher

Vol. 1, 3-15, 17-18 contain Proceedings of the 1st-15th, 17th-18th annual meetings of the Illinois State Teachers' Association, 1854-71

Illinois petroleum.

At head of title: State of Illinois, Dept. of Registration and Education.

Proceedings of the ... annual meeting of the Indiana State Bar Association

Mode of access: Internet.

Development of an Observation Well Network in the Mahomet Aquifer of East-Central Illinois

Illinois State Water Survey

The 2005 Illinois Drought

Illinois State Water Survey

The Water Cycle and Water Budgets in Illinois: A Framework for Drought and Water Supply Planning

Illinois State Water Survey

Arsenic in Groundwater in Central Illinois

Illinois State Water Survey

A Plan for Scientific Assessment of Water Supplies in Illinois

Illinois State Water Survey

2008: A Record Wet and Stormy Year in Illinois

published or submitted for publication

The Severe Winter of 2008-09 in Illinois

published or submitted for publication