Source materials on water pollution control.

Mode of access: Internet.

Algae in water supplies; an illustrated manual on the identification, significance, and control of algae in water supplies.

Mode of access: Internet.

Report of the Rivers and lakes commission on the Illinois River and its bottom lands, with reference to the conservation of agriculture and fisheries and the control of floods,

Mode of access: Internet.

State control of milk prices.

"Table of cases": p. 91-96.