Articles discussing Willamette Valley project debate, swan killing, and lecture given by William Finley and William Smith
Articles discussing effects of dams on Oregon rivers
Articles discussing effects of dams on Oregon rivers
Article discussing Willamette Valley project and memorandum promoting William Finley speech
Program listing "Arizona birds" lecture and articles discussing Willamette Valley project
Articles discussing waterway development projects and William Finley lectures
Articles discussing National Wildlife Federation meeting and waterway development projects
Articles discussing pollution of Columbia and Willamette rivers
Articles discussing pollution of Willamette River, creation of an executive committee for sportsmen, and the American Nature Association Alaska expedition
Recreational Resources Committee meeting minutes
Articles discussing dams on the Willamette River and conservation meetings
Articles discussing river pollution and Members' Forum of the Chamber meeting
Articles discussing river pollution, anti-pollution bill, and death of Charles Lathrop Pack
Editorial discussing effects of proposed Willamette River dams on salmon runs
