Stream pollution: 1, Review of work of Public Health Service in investigations of stream pollution [with bibliography relating to studies of stream pollution, sewage, and water suppliesl, by W. H. Frost; 2, Rate of deoxygenation of polluted waters, by Emetry J. Theriault; 3, Rate of atmospheric reaeration of sewage-polluted streams, by H. W. Streeter; 4. Quantitative studies of bacterial pollution and natural purification in Ohio and Illinois rivers, by J. K. Hoskins.

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