Arboretum Offers Classes for Clinton School Students During late September and October, Clinton Community School District's second graders visited the arboretum. The students studied the structure of seeds and methods of seed dispersal. They participated in a hands-on tour and collected various types of seeds and made seed bracelets. The seed dispersal lessons were given by arboretum volunteers (retired teachers) and arboretum director Francie Hill. The students will return in the spring for another outdoor lesson. Here are a few of the many enthusiastic responses from the youngsters: