It’s hard to believe that the seven large-scale abstract works in glass and neon featured in “Keith Sonnier: 68-70” were created over 40 years ago. They seem fresh and vibrant, and they bear a sense of up-to-the minute urgency. Large, clear plate-glass geometric shapes leaning against the wall, augmented with colorful neon tubing illuminate and enliven the room like monumental works of public sculpture. By contrast, the more calligraphic neon lines in the “Neon Wrapping Incandescent” series of wall reliefs are more intimate and sensuous.