A number of the finely wrought geometric structures of wood and metal in this show of new works by Martin Puryear convey a sense of momentum. Some are literally wheeled vehicles: The Rest (2009-10), a four-foot-tall, upended bronze covered wagon at the show’s entrance, suggests a type of cart used to transport slaves in the 19th century. Another imposing work, the white bronze totem Heaven Three Ways / Exquisite Corpse (2011), is at once alluring and threatening. Here, the jagged sword-like element, thrusting upward from a curved armature and spiraling base, appears truly lethal.