Charles Long, "Up Land"

For more than 20 years, Long has investigated the plastic possibilities of sculptural form, meaning and materials, creating works out of coffee grounds, for example, or basing them on the phantasmagoric content of 19th-century "spirit" photographs. In this show, he alludes to cosmology and delves into the 5,000-year-old process of bronze casting with pieces that deliberately retain their sprues (thin tubes that channel liquid metal into a mold, which are usually removed from the cast).