The Eric Sloane Museum on Route 7 North in Kent will present a program with Professor Robert Thorson May 17.

Activities will include a stone walkabout/talk at 10 a.m., a book signing and a question/answer session at 11:15 a.m., a general talk about New England stonewalls with a local emphasis via a Power Point presentation at 1 p.m. and a children's hands-on exercise about his book "Stone Wall Secrets" at 2:30 p.m.