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This year the League for the Preservation of Nature celebrates the sixtieth anniversary of its foundation. The authoress of the article describes in detail the course of the organizatianal actions when founding this organization as well as the interwar activities.
He was professor of zoology at the Jagiellonian Uniwersity and lived from 1826 to 1890. He rendered invaluable services to shaping the staff of the Polish zoologists and to popularizing the protection of fauna and expecially of fish.
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