1. Gettrust , J. S. Contamination of Water in a New Pipe Line by Jute and Hemp Packing Ann. Rept. Ohio Conf. Wtr. Purif 1937 23
2. Water Main Contamination Traced to Jute Packing;Arnold;Western Constr. News,1936
3. LaDue , W. R. Experience at Akron With Rubber Packing To Replace Jute and Hemp in Laying Cast-Iron Water Mains Ann. Rept. Ohio Conf. Wtr. Purif 1940 87
4. New Data on Main Sterilization;Calvert;Eng. News-Rec.,1939
5. Experience With Chlorinating New Water Mains;Adams;J.N.E.W.W.A.,1937