Water pollution. Pollution of navigable waters, hearings, 74 Congress, 2d session, on H. R. 12101, granting to States of Ohio Valley consent of Congress to interstate compact or treaty for purpose of controlling or reducing stream pollution, H. R. 12102, to provide for preparation of plan to reduce pollution of navigable waters and for appropriation of money for that purpose, H. R. 12103, to provide for preparation of plan to reduce pollution of navigable waters of United States, H. R. 12764, to create Division of Stream Pollution Control in Bureau of Public Health Service, and for other purposes, May 20, 1936.

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