The Congressional Record is the official record of the proceedings and debates of the United States Congress. It is published daily when Congress is in session. The Congressional Record began publication in 1873. Debates for sessions prior to 1873 are recorded in The Debates and Proceedings in the Congress of the United States (1789-1824), the Register of Debates in Congress (1824-1837), and the Congressional Globe (1833-1873)

Reviews problem of heat discharges into waterways, especially as related to steam electrical generating plants, and their effects upon river ecological systems. Feb. 13 hearing was held in Portland, Maine; and Feb. 14 hearing was held in Montpelier, Vt., pt.1; Continuation of hearings on water pollution problems caused by electric power plants. Apr. 19 hearing was held in Miami, Fla., pt.2; Appendix includes "Heated Effluents and Effects on Aquatic Life with Emphasis on Fishes," a bibliography by Edward C. Raney and Bruce W. Menzel, Cornell Univ. for Philadelphia Electric Co. and Ichthyological Associates, July 7, 1967 (p. 1285-1374); and "Water Temperatures and Aquatic Life," a report by Charles B. Wurtz and Charles E. Renn, for the Edison Electric Institute, June 1, 1965 (p. 1139-1243), pt.4.