Earlier this month the University of Maryland art department hosted its annual iron pour, in which students, faculty, and guests made molds and pour iron to cast metal sculpture. The sculptors arrived a day early with molds, which they build into the ground, and radiators, which they hack up and melt down for the metal. The acrid smell lingers for days; the iron sculpture, much longers. [Note: This writer teaches a graduate fine art colloquium at the University of Maryland.]