Susan and I are proud sponsors of Southampton Arts Center’s multimedia exhibit “A Celebration of Trees” from October 1 to December 18. Timed for fall color, special programs include a tour of SAC’s arboretum (October 8), guided tree meditation (October 16) and tour of Sag Harbor’s Elizabeth A. Morton National Wildlife Refuge (October 22). 25 Jobs Lane, Southampton, N.Y., 11968.