SUMMER CLINICS (DROP-IN ANY DAY!) Week of July 15  Dorchester Methuen Peabody Stoneham Cambridge Week of July 22  Dorchester Methuen Peabody Wellesley Cambridge Week of July 29 Lexington Dorchester Methuen Peabody Cambridge Week of August 5 Arlington Brookline Dorchester Methuen Peabody Week of August 12  Braintree Lexington Marblehead Methuen Peabody Wellesley Week of August 19 …