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Author notes

Mr. Salvato received the B.S. degree in Civil Engineering from New York University in 1936 and the M.C.E. in 1939. He has served as district sanitary engineer with the New York State Health Department, as a sanitary engineer in the Army during World War II, and as Chief of the Bureau of General Sanitation in the Erie County Health Department, New York. He is presently Director, Division of Environmental Hygiene, Rensselaer County Health Department, New York. He has been a member of the IAMFS for more than 15 years and is an active member and contributor to many technical and scientific associations.

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