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Ecology
Callanan Jr. High to be huge, 5-day ecology lab, Des Moines.
Senate confirms William D. Ruckelshaus to lead United States ecology effort
Asks trucker ecology move.
Sell 'ecology' at supermart - nonpolluting products.
Iowa State University ecology talk September 15 by David Brower, President
Pollution control in Sweden is hailed as world's best.
Plan broad antipollution regulations, Illinois.
Who could be trusted as world ecology watchdog?
Men's Garden Clubs are urged to become a "vocal majority about ecology."
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