NLM Digital Collections

Search

Search Constraints

Start Over You searched for: Subjects Rivers Remove constraint Subjects: Rivers

Search Results

2. Drainage of Chicago

10. Ohio River pollution control: letter from the acting secretary of war, transmitting a letter from the chief of engineers, United States Army, dated May 4, 1943, forwarding a report, together with accompanying papers and illustrations, on a survey of the Ohio River and its tributaries for pollution control, authorized by section 5 of the River and harbor act, approved August 26, 1937