Scope and Contents Materials concerned with S. 890 and H.R. 9540 copies of bills included, to extend and strengthen the Water Pollution Control Act, testimony of H. C. Ballman, executive secretary of Air Pollution Control Association, summary of Water Pollution Control Act amendments, A Rational Approach to Air Pollution Legislation, a booklet by Manufacturing Chemists Association, "An Approach to the Air Pollution Dilemma," a speech by William C. Foster of Manufacturing Chemists Association, statement of Oveta...