RANGELEY — The final Sunday Natural Science Program for the summer at the Wilhelm Reich Museum will be held at 2 p.m. Sunday, Aug. 30, when Herb Wilson will discuss butterflies.

Wilson is a professor of biology at Colby College, where he teaches diverse subjects on biology. He is also a coordinator for the Maine Butterfly Survey. He writes a column for several newspapers in Maine about birds.

The observatory building details the life and work of physician/scientist Wilhelm Reich, whose interest in the natural environment led to the introduction of the natural science program in 1989. The observatory is open from 1 to 5 p.m. Wednesday through Sunday in July and August, and Sundays only in September. The adult admission fee is $6, children 12 and under, free.

The Sunday nature programs are free and are funded by individual donors.

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