Looking at Lichens-A Journey of Discovery Beginning on Cape Cod was written by naturalist Nancy Wigley with photographs by Susan W. Carr.

Ms. Wigley will answer questions about what lichens are, where they are found, how they reproduce, why they are like the canary in the mine, which ones are poisonous, how they are used medicinally, and how they played an important role in establishing life on Earth. She will also have common specimens on hand during this drop-in program at the Green Briar Nature Center, 6 Discovery Hill Road (off Route 6A) in East Sandwich on Wednesday, July 9 beginning at 5 pm.  $5.  For more information call 508-888-6870, or email info@thorntonburgess.org.