The Friends of the Chestnut Hill Library and LandHealth Institute Present A Wissahickon Almanac A Springtime Hiking, Journaling, and Book Discussion Group When: 4 Saturdays from 9:30 am to 11:30 […]
Do you wonder how people learned to make paper? There are many connections between water and paper making. Most paper is made from trees, and trees need water. The process of paper making uses a lot of water and can create pollution, so keeping rivers clean near paper making factories is important. We will investigate […]
