This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book. ++++ The below data was compiled from various identification fields in the bibliographic record of this title. This data is provided as an additional tool in helping to ensure edition identification: ++++ Advance Notes Of The Sanitary Investigations Of The Illinois River And Its Tributaries: With Special Reference To The Effect Of The Sewage Of Chicago On The DesPlaines And Illinois Rivers Prior To The Opening Of The Chicago Drainage Canal Illinois State Board of Health Phillips Bros., 1900 Technology & Engineering; Environmental; Water Supply; Des Plaines River (Wis. and Ill.); Illinois River (Ill.); Medical / Public Health; Nature / Natural Resources; Technology & Engineering / Environmental / Water Supply; Water; Water-supply

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