You are invited to the Putnam Boston Equestrian Classic Preview Party to benefit the Boston Park Rangers Mounted Unit.  Boston Jumps on the Common is free of charge and open to the public on Thursday, August 25, beginning at 5 pm on the Boston Common, corner of Beacon Street and Charles Street.  Enjoy a preview of the Putnam Boston Equestrian Classic and see Olympic Grand Prix jumping, followed by an exhibition by the Boston Park Rangers Mounted Unit.  The Putnam Equestrian Classic will take place at the Myopia Hunt Club in Hamilton September 8 – 11.  For more information, call (978) 491-9456 or visit www.bostonequestrianclassic.com.