Pollution of Navigable Waters: Hearings Before the Committee on Rivers and Harbors, House of Representatives, Seventy-fourth Congress, Second Session, on H.R. 12101, a Bill Granting to the States of the Ohio Valley Consent of Congress to an Interstate Compact Or Treaty for the Purpose of Controlling Or Reducing Stream Pollution; H.R. 12102, a Bill to Provide for the Preparation of a Plan to Reduce the Pollution of Navigable Waters and for the Appropriation of Money for that Purpose; H.R. 12103, a Bill to Provide for the Preparation of a Plan to Reduce the Pollution of Navigable Water of the United States; H.R. 12764, a Bill to Create a Division of Stream Pollution Control in the Bureau of the Public Health Service, and for Other Purposes. May 20 1936