Issue 24 and Volume 52.

FILTRATION The water at Logansport, Ind., is impure and filtration is called for. The idea has been more than entertained since 1891. Waco, Tex., waler commissioners have accepted the bid of the Pittsburgh Filter Company to install a water filtration plant there at a cost of about $85,000. An extensive investigation of the purity of the water of the Potomac river is to be begun at once by Surgeon General Blue, of the United States public health service, by direction of Secretary MacVeagn, of the Treasury Department. The water in use at Parkersuurg, W. Va., Ohio river and slow-sand filtered, on being analyzed recently, showed ail absence ot any typhoid germs. The colon bacilli were reduced from 100 per centimeter in the raw water to none in the tillered. Moline, Ill., has oppointed L. A. Fritze, recently with the American Water Works Guarantee Company, of Pttsburgh, Pa., in whose chemical…

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