On Wednesday evening, September 22, Jim Baker of Native Landscaping will introduce you to the tools, techniques and safety precautions necessary for Saturday, September 25’s hands-on working session outdoors at Tower Hill Botanic Garden in Boylston, MA.  Using diagrams and outline designs, Jim will explain the building process.  A slide presentation will illustrate a variety of stone walls in different stages of construction.  On Saturday, dress for work and weather, bringing work gloves, bottled water, and a bag lunch.   Tower Hill member price $54, non members $60.  Register at www.towerhillbg.org.  Photo  below by Patrick Lynch.