Robert Morris is such a common name that some museumgoers think there are several Robert Morrises. There is the one whose grey Fiberglas L shapes won a prize at the Chicago Art Institute in 1966, and the one whose knifeedged I beams starred in the Guggenheim Museum's sculpture show last year. Then there is the Robert Morris who electrified Buffalonians at the 1965 Festival of the Arts by a "dance" in which he and a female partner inched across the stage, locked in embrace and clad only in mineral oil.
All these adventures...