Advances in water pollution research. Vol. 1 / B. A. Southgate.

Biological extraction and accumulation in stream self- purification.--2.The oxigen régime and the processes of self purification in resercoirs with retarded discharge.--3.the effect of the curent on the composition of biocoenoses in flowing water streams.--4.Self puification of fresh water streams as affected by tempeature and by the content of oxygen , nitrogen and other substances.--5. An electronic monitor system fo iver -quality surveillance and reserch .--An analog computer for oxygen sag calculations.--The prediction of stream reaeration rates.--The reserch program on the Mississippi river in the vicinity of Minneapolis and St.- Paul.--Recovery and identification of organics in water .--Investigation of a small watercourse accidentally polluted by phenol compounds.--Salmonellae in crude sewage , sewage effluent and sewage -polluted natural waters.--