"THE MEMORY OF TREES" with John Mattor - Explore the old science of Dendrochronology with John Mattor, Chairman of the Hollis Conservation Commission and key person on sight for Indian Cellar. Join John as he presents comparisons and leads discussion around the wisdom of trees, specifically two huge sugar maple tree sections, one cut in 1998 from the old McKenny property in Hollis and a similar one cut in 2017 from his front yard on Salmon Falls Rd. in Hollis, recording copious amounts of climatic conditions respectively in our area from 1850-1875. BHHS, 100 Main St, Bar Mills.
*Suggested donations $10; Seniors $8.