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A study of the pollution and natural purification of the Illinois River : I. surveys and laboratory studies / by J.K. Hoskins, C.C. Ruchhoft, L.G. Willams ; prepared by direction of the Surgeon General.

Report of the sanitary investigations of the Illinois river and its tributaries : with special reference to the effect of the sewage of Chicago on the Des Plaines and Illinois rivers prior to and after the opening of the Chicago drainage canal.

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A study of the pollution and natural purification of the Illinois River : I. surveys and laboratory studies / by J.K. Hoskins, C.C. Ruchhoft, L.G. Willams ; prepared by direction of the Surgeon General.

Report of the sanitary investigations of the Illinois river and its tributaries : with special reference to the effect of the sewage of Chicago on the Des Plaines and Illinois rivers prior to and after the opening of the Chicago drainage canal.