SELF IMPROVEMENT OF STREAMS 34] 
of the case were brought out when the State of Missouri and the city of 
St. Louis tried to secure an injunction against the Sanitary District of 
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Fia. 64.—Chicago Drainage Canal and the Illinois River Basin. (From Kinnicut, 
Winslow and Pratt’s Sewage Disposal, John Wiley and Sons, Inc.) 
